Home / 6,931.07-10,400.73-2,551.61

Finding the Fourth Proportional to 6,931.07, 10,400.73 and 2,551.61

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Solution

The fourth proportional to 6,931.07, 10,400.73 and 2,551.61 is: 3,828.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.07 : 10,400.73 = 2,551.61 : x
  2. Step 2: Convert to fraction form
    6,931.07/10,400.73 = 2,551.61/x
  3. Step 3: Cross multiply
    6,931.07x = 10,400.73 × 2,551.61
  4. Step 4: Simplify right side
    6,931.07x = 26,538,545.10
  5. Step 5: Solve for x
    x = 26,538,545.10/6,931.07
  6. Step 6: Final answer
    x = 3,828.92

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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.