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Finding the Fourth Proportional to 2,932.42, 4,398.63 and 985.99

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Solution

The fourth proportional to 2,932.42, 4,398.63 and 985.99 is: 1,478.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,932.42 : 4,398.63 = 985.99 : x
  2. Step 2: Convert to fraction form
    2,932.42/4,398.63 = 985.99/x
  3. Step 3: Cross multiply
    2,932.42x = 4,398.63 × 985.99
  4. Step 4: Simplify right side
    2,932.42x = 4,337,001.52
  5. Step 5: Solve for x
    x = 4,337,001.52/2,932.42
  6. Step 6: Final answer
    x = 1,478.98

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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.