Home / 5,487.40-7,579.14-4,372.12

Finding the Fourth Proportional to 5,487.40, 7,579.14 and 4,372.12

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Solution

The fourth proportional to 5,487.40, 7,579.14 and 4,372.12 is: 6,038.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.40 : 7,579.14 = 4,372.12 : x
  2. Step 2: Convert to fraction form
    5,487.40/7,579.14 = 4,372.12/x
  3. Step 3: Cross multiply
    5,487.40x = 7,579.14 × 4,372.12
  4. Step 4: Simplify right side
    5,487.40x = 33,136,909.58
  5. Step 5: Solve for x
    x = 33,136,909.58/5,487.40
  6. Step 6: Final answer
    x = 6,038.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.