Home / 5,688.20-8,532.30-3,719.90

Finding the Fourth Proportional to 5,688.20, 8,532.30 and 3,719.90

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Solution

The fourth proportional to 5,688.20, 8,532.30 and 3,719.90 is: 5,579.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.20 : 8,532.30 = 3,719.90 : x
  2. Step 2: Convert to fraction form
    5,688.20/8,532.30 = 3,719.90/x
  3. Step 3: Cross multiply
    5,688.20x = 8,532.30 × 3,719.90
  4. Step 4: Simplify right side
    5,688.20x = 31,739,302.77
  5. Step 5: Solve for x
    x = 31,739,302.77/5,688.20
  6. Step 6: Final answer
    x = 5,579.85

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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.