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Finding the Fourth Proportional to 5,085.28, 7,591.28 and 4,429

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Solution

The fourth proportional to 5,085.28, 7,591.28 and 4,429 is: 6,611.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.28 : 7,591.28 = 4,429 : x
  2. Step 2: Convert to fraction form
    5,085.28/7,591.28 = 4,429/x
  3. Step 3: Cross multiply
    5,085.28x = 7,591.28 × 4,429
  4. Step 4: Simplify right side
    5,085.28x = 33,621,779.12
  5. Step 5: Solve for x
    x = 33,621,779.12/5,085.28
  6. Step 6: Final answer
    x = 6,611.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.