Home / 1,545.12-2,317.86-571.32

Finding the Fourth Proportional to 1,545.12, 2,317.86 and 571.32

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Solution

The fourth proportional to 1,545.12, 2,317.86 and 571.32 is: 857.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.12 : 2,317.86 = 571.32 : x
  2. Step 2: Convert to fraction form
    1,545.12/2,317.86 = 571.32/x
  3. Step 3: Cross multiply
    1,545.12x = 2,317.86 × 571.32
  4. Step 4: Simplify right side
    1,545.12x = 1,324,239.78
  5. Step 5: Solve for x
    x = 1,324,239.78/1,545.12
  6. Step 6: Final answer
    x = 857.05

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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.