Home / 5,624.40-8,436.48-1,728.72

Finding the Fourth Proportional to 5,624.40, 8,436.48 and 1,728.72

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Solution

The fourth proportional to 5,624.40, 8,436.48 and 1,728.72 is: 2,593.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,624.40 : 8,436.48 = 1,728.72 : x
  2. Step 2: Convert to fraction form
    5,624.40/8,436.48 = 1,728.72/x
  3. Step 3: Cross multiply
    5,624.40x = 8,436.48 × 1,728.72
  4. Step 4: Simplify right side
    5,624.40x = 14,584,311.71
  5. Step 5: Solve for x
    x = 14,584,311.71/5,624.40
  6. Step 6: Final answer
    x = 2,593.04

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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.