Home / 1,554.03-2,144.41-890.75

Finding the Fourth Proportional to 1,554.03, 2,144.41 and 890.75

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Solution

The fourth proportional to 1,554.03, 2,144.41 and 890.75 is: 1,229.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.03 : 2,144.41 = 890.75 : x
  2. Step 2: Convert to fraction form
    1,554.03/2,144.41 = 890.75/x
  3. Step 3: Cross multiply
    1,554.03x = 2,144.41 × 890.75
  4. Step 4: Simplify right side
    1,554.03x = 1,910,136.34
  5. Step 5: Solve for x
    x = 1,910,136.34/1,554.03
  6. Step 6: Final answer
    x = 1,229.15

Related Problems

Find fourth proportional to 777.02, 1,072.20 and 445.38
Half scale
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Double scale
Find fourth proportional to 1,555.03, 2,145.79 and 891.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.