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Finding the Fourth Proportional to 5,686.71, 8,530.15 and 1,526.40

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Solution

The fourth proportional to 5,686.71, 8,530.15 and 1,526.40 is: 2,289.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686.71 : 8,530.15 = 1,526.40 : x
  2. Step 2: Convert to fraction form
    5,686.71/8,530.15 = 1,526.40/x
  3. Step 3: Cross multiply
    5,686.71x = 8,530.15 × 1,526.40
  4. Step 4: Simplify right side
    5,686.71x = 13,020,433.52
  5. Step 5: Solve for x
    x = 13,020,433.52/5,686.71
  6. Step 6: Final answer
    x = 2,289.62

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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.