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Finding the Fourth Proportional to 2,981.08, 4,471.65 and 901.30

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Solution

The fourth proportional to 2,981.08, 4,471.65 and 901.30 is: 1,351.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.08 : 4,471.65 = 901.30 : x
  2. Step 2: Convert to fraction form
    2,981.08/4,471.65 = 901.30/x
  3. Step 3: Cross multiply
    2,981.08x = 4,471.65 × 901.30
  4. Step 4: Simplify right side
    2,981.08x = 4,030,298.15
  5. Step 5: Solve for x
    x = 4,030,298.15/2,981.08
  6. Step 6: Final answer
    x = 1,351.96

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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.