Home / 5,423.71-8,135.57-1,527.61

Finding the Fourth Proportional to 5,423.71, 8,135.57 and 1,527.61

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Solution

The fourth proportional to 5,423.71, 8,135.57 and 1,527.61 is: 2,291.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.71 : 8,135.57 = 1,527.61 : x
  2. Step 2: Convert to fraction form
    5,423.71/8,135.57 = 1,527.61/x
  3. Step 3: Cross multiply
    5,423.71x = 8,135.57 × 1,527.61
  4. Step 4: Simplify right side
    5,423.71x = 12,427,970.45
  5. Step 5: Solve for x
    x = 12,427,970.45/5,423.71
  6. Step 6: Final answer
    x = 2,291.42

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1.5x scale

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.