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Finding the Fourth Proportional to 5,799.12, 8,700.30 and 2,101.20

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Solution

The fourth proportional to 5,799.12, 8,700.30 and 2,101.20 is: 3,152.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,799.12 : 8,700.30 = 2,101.20 : x
  2. Step 2: Convert to fraction form
    5,799.12/8,700.30 = 2,101.20/x
  3. Step 3: Cross multiply
    5,799.12x = 8,700.30 × 2,101.20
  4. Step 4: Simplify right side
    5,799.12x = 18,281,070.36
  5. Step 5: Solve for x
    x = 18,281,070.36/5,799.12
  6. Step 6: Final answer
    x = 3,152.39

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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.