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Finding the Fourth Proportional to 2,951.28, 4,427.01 and 760.05

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Solution

The fourth proportional to 2,951.28, 4,427.01 and 760.05 is: 1,140.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.28 : 4,427.01 = 760.05 : x
  2. Step 2: Convert to fraction form
    2,951.28/4,427.01 = 760.05/x
  3. Step 3: Cross multiply
    2,951.28x = 4,427.01 × 760.05
  4. Step 4: Simplify right side
    2,951.28x = 3,364,748.95
  5. Step 5: Solve for x
    x = 3,364,748.95/2,951.28
  6. Step 6: Final answer
    x = 1,140.10

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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.