Home / 5,215.28-7,197.02-2,977.04

Finding the Fourth Proportional to 5,215.28, 7,197.02 and 2,977.04

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Solution

The fourth proportional to 5,215.28, 7,197.02 and 2,977.04 is: 4,108.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.28 : 7,197.02 = 2,977.04 : x
  2. Step 2: Convert to fraction form
    5,215.28/7,197.02 = 2,977.04/x
  3. Step 3: Cross multiply
    5,215.28x = 7,197.02 × 2,977.04
  4. Step 4: Simplify right side
    5,215.28x = 21,425,816.42
  5. Step 5: Solve for x
    x = 21,425,816.42/5,215.28
  6. Step 6: Final answer
    x = 4,108.28

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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.