Home / 1,417.50-2,126.25-443.63

Finding the Fourth Proportional to 1,417.50, 2,126.25 and 443.63

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Solution

The fourth proportional to 1,417.50, 2,126.25 and 443.63 is: 665.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.50 : 2,126.25 = 443.63 : x
  2. Step 2: Convert to fraction form
    1,417.50/2,126.25 = 443.63/x
  3. Step 3: Cross multiply
    1,417.50x = 2,126.25 × 443.63
  4. Step 4: Simplify right side
    1,417.50x = 943,261.64
  5. Step 5: Solve for x
    x = 943,261.64/1,417.50
  6. Step 6: Final answer
    x = 665.44

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.