Home / 3,139.29-4,332.23-1,812.99

Finding the Fourth Proportional to 3,139.29, 4,332.23 and 1,812.99

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Solution

The fourth proportional to 3,139.29, 4,332.23 and 1,812.99 is: 2,501.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.29 : 4,332.23 = 1,812.99 : x
  2. Step 2: Convert to fraction form
    3,139.29/4,332.23 = 1,812.99/x
  3. Step 3: Cross multiply
    3,139.29x = 4,332.23 × 1,812.99
  4. Step 4: Simplify right side
    3,139.29x = 7,854,289.67
  5. Step 5: Solve for x
    x = 7,854,289.67/3,139.29
  6. Step 6: Final answer
    x = 2,501.93

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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.