Home / 1,554.19-2,144.53-995.15

Finding the Fourth Proportional to 1,554.19, 2,144.53 and 995.15

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Solution

The fourth proportional to 1,554.19, 2,144.53 and 995.15 is: 1,373.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.19 : 2,144.53 = 995.15 : x
  2. Step 2: Convert to fraction form
    1,554.19/2,144.53 = 995.15/x
  3. Step 3: Cross multiply
    1,554.19x = 2,144.53 × 995.15
  4. Step 4: Simplify right side
    1,554.19x = 2,134,129.03
  5. Step 5: Solve for x
    x = 2,134,129.03/1,554.19
  6. Step 6: Final answer
    x = 1,373.15

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Half scale
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Double scale
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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.