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Finding the Fourth Proportional to 4,656.64, 6,985.68 and 2,900.30

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Solution

The fourth proportional to 4,656.64, 6,985.68 and 2,900.30 is: 4,350.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,656.64 : 6,985.68 = 2,900.30 : x
  2. Step 2: Convert to fraction form
    4,656.64/6,985.68 = 2,900.30/x
  3. Step 3: Cross multiply
    4,656.64x = 6,985.68 × 2,900.30
  4. Step 4: Simplify right side
    4,656.64x = 20,260,567.70
  5. Step 5: Solve for x
    x = 20,260,567.70/4,656.64
  6. Step 6: Final answer
    x = 4,350.90

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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.