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Finding the Fourth Proportional to 5,862.80, 8,145.08 and 5,808.80

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Solution

The fourth proportional to 5,862.80, 8,145.08 and 5,808.80 is: 8,070.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,862.80 : 8,145.08 = 5,808.80 : x
  2. Step 2: Convert to fraction form
    5,862.80/8,145.08 = 5,808.80/x
  3. Step 3: Cross multiply
    5,862.80x = 8,145.08 × 5,808.80
  4. Step 4: Simplify right side
    5,862.80x = 47,313,140.70
  5. Step 5: Solve for x
    x = 47,313,140.70/5,862.80
  6. Step 6: Final answer
    x = 8,070.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.