Home / 5,620.42-8,430.65-1,724.83

Finding the Fourth Proportional to 5,620.42, 8,430.65 and 1,724.83

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Solution

The fourth proportional to 5,620.42, 8,430.65 and 1,724.83 is: 2,587.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.42 : 8,430.65 = 1,724.83 : x
  2. Step 2: Convert to fraction form
    5,620.42/8,430.65 = 1,724.83/x
  3. Step 3: Cross multiply
    5,620.42x = 8,430.65 × 1,724.83
  4. Step 4: Simplify right side
    5,620.42x = 14,541,414.81
  5. Step 5: Solve for x
    x = 14,541,414.81/5,620.42
  6. Step 6: Final answer
    x = 2,587.25

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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.