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Finding the Fourth Proportional to 4,729.64, 6,528.42 and 2,868.20

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Solution

The fourth proportional to 4,729.64, 6,528.42 and 2,868.20 is: 3,959.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,729.64 : 6,528.42 = 2,868.20 : x
  2. Step 2: Convert to fraction form
    4,729.64/6,528.42 = 2,868.20/x
  3. Step 3: Cross multiply
    4,729.64x = 6,528.42 × 2,868.20
  4. Step 4: Simplify right side
    4,729.64x = 18,724,814.24
  5. Step 5: Solve for x
    x = 18,724,814.24/4,729.64
  6. Step 6: Final answer
    x = 3,959.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.