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Finding the Fourth Proportional to 5,868.12, 8,801.85 and 1,485.30

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Solution

The fourth proportional to 5,868.12, 8,801.85 and 1,485.30 is: 2,227.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,868.12 : 8,801.85 = 1,485.30 : x
  2. Step 2: Convert to fraction form
    5,868.12/8,801.85 = 1,485.30/x
  3. Step 3: Cross multiply
    5,868.12x = 8,801.85 × 1,485.30
  4. Step 4: Simplify right side
    5,868.12x = 13,073,387.81
  5. Step 5: Solve for x
    x = 13,073,387.81/5,868.12
  6. Step 6: Final answer
    x = 2,227.87

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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.