Home / 1,547.16-2,319.29-572.50

Finding the Fourth Proportional to 1,547.16, 2,319.29 and 572.50

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Solution

The fourth proportional to 1,547.16, 2,319.29 and 572.50 is: 858.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.16 : 2,319.29 = 572.50 : x
  2. Step 2: Convert to fraction form
    1,547.16/2,319.29 = 572.50/x
  3. Step 3: Cross multiply
    1,547.16x = 2,319.29 × 572.50
  4. Step 4: Simplify right side
    1,547.16x = 1,327,793.53
  5. Step 5: Solve for x
    x = 1,327,793.53/1,547.16
  6. Step 6: Final answer
    x = 858.21

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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.