Home / 6,931.59-10,390.91-2,547.87

Finding the Fourth Proportional to 6,931.59, 10,390.91 and 2,547.87

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Solution

The fourth proportional to 6,931.59, 10,390.91 and 2,547.87 is: 3,819.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.59 : 10,390.91 = 2,547.87 : x
  2. Step 2: Convert to fraction form
    6,931.59/10,390.91 = 2,547.87/x
  3. Step 3: Cross multiply
    6,931.59x = 10,390.91 × 2,547.87
  4. Step 4: Simplify right side
    6,931.59x = 26,474,675.12
  5. Step 5: Solve for x
    x = 26,474,675.12/6,931.59
  6. Step 6: Final answer
    x = 3,819.42

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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.