Home / 5,423.98-8,136.28-1,528.70

Finding the Fourth Proportional to 5,423.98, 8,136.28 and 1,528.70

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Solution

The fourth proportional to 5,423.98, 8,136.28 and 1,528.70 is: 2,293.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.98 : 8,136.28 = 1,528.70 : x
  2. Step 2: Convert to fraction form
    5,423.98/8,136.28 = 1,528.70/x
  3. Step 3: Cross multiply
    5,423.98x = 8,136.28 × 1,528.70
  4. Step 4: Simplify right side
    5,423.98x = 12,437,931.24
  5. Step 5: Solve for x
    x = 12,437,931.24/5,423.98
  6. Step 6: Final answer
    x = 2,293.14

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Similar ratio
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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.