Home / 1,567.56-2,162.84-938.19

Finding the Fourth Proportional to 1,567.56, 2,162.84 and 938.19

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Solution

The fourth proportional to 1,567.56, 2,162.84 and 938.19 is: 1,294.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.56 : 2,162.84 = 938.19 : x
  2. Step 2: Convert to fraction form
    1,567.56/2,162.84 = 938.19/x
  3. Step 3: Cross multiply
    1,567.56x = 2,162.84 × 938.19
  4. Step 4: Simplify right side
    1,567.56x = 2,029,154.86
  5. Step 5: Solve for x
    x = 2,029,154.86/1,567.56
  6. Step 6: Final answer
    x = 1,294.47

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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.