Home / 5,385.70-8,069.61-1,873.84

Finding the Fourth Proportional to 5,385.70, 8,069.61 and 1,873.84

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Solution

The fourth proportional to 5,385.70, 8,069.61 and 1,873.84 is: 2,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.70 : 8,069.61 = 1,873.84 : x
  2. Step 2: Convert to fraction form
    5,385.70/8,069.61 = 1,873.84/x
  3. Step 3: Cross multiply
    5,385.70x = 8,069.61 × 1,873.84
  4. Step 4: Simplify right side
    5,385.70x = 15,121,158.00
  5. Step 5: Solve for x
    x = 15,121,158.00/5,385.70
  6. Step 6: Final answer
    x = 2,807.65

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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.