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Finding the Fourth Proportional to 2,306.60, 3,459.90 and 663.15

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Solution

The fourth proportional to 2,306.60, 3,459.90 and 663.15 is: 994.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.60 : 3,459.90 = 663.15 : x
  2. Step 2: Convert to fraction form
    2,306.60/3,459.90 = 663.15/x
  3. Step 3: Cross multiply
    2,306.60x = 3,459.90 × 663.15
  4. Step 4: Simplify right side
    2,306.60x = 2,294,427.14
  5. Step 5: Solve for x
    x = 2,294,427.14/2,306.60
  6. Step 6: Final answer
    x = 994.72

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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.