Home / 6,931.42-10,390.92-2,545.81

Finding the Fourth Proportional to 6,931.42, 10,390.92 and 2,545.81

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Solution

The fourth proportional to 6,931.42, 10,390.92 and 2,545.81 is: 3,816.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.42 : 10,390.92 = 2,545.81 : x
  2. Step 2: Convert to fraction form
    6,931.42/10,390.92 = 2,545.81/x
  3. Step 3: Cross multiply
    6,931.42x = 10,390.92 × 2,545.81
  4. Step 4: Simplify right side
    6,931.42x = 26,453,308.05
  5. Step 5: Solve for x
    x = 26,453,308.05/6,931.42
  6. Step 6: Final answer
    x = 3,816.43

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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.