Home / 5,126.85-7,683.92-3,643.70

Finding the Fourth Proportional to 5,126.85, 7,683.92 and 3,643.70

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Solution

The fourth proportional to 5,126.85, 7,683.92 and 3,643.70 is: 5,461.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.85 : 7,683.92 = 3,643.70 : x
  2. Step 2: Convert to fraction form
    5,126.85/7,683.92 = 3,643.70/x
  3. Step 3: Cross multiply
    5,126.85x = 7,683.92 × 3,643.70
  4. Step 4: Simplify right side
    5,126.85x = 27,997,927.62
  5. Step 5: Solve for x
    x = 27,997,927.62/5,126.85
  6. Step 6: Final answer
    x = 5,461.04

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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.