Home / 5,780.38-7,977.08-3,422.52

Finding the Fourth Proportional to 5,780.38, 7,977.08 and 3,422.52

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Solution

The fourth proportional to 5,780.38, 7,977.08 and 3,422.52 is: 4,723.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.38 : 7,977.08 = 3,422.52 : x
  2. Step 2: Convert to fraction form
    5,780.38/7,977.08 = 3,422.52/x
  3. Step 3: Cross multiply
    5,780.38x = 7,977.08 × 3,422.52
  4. Step 4: Simplify right side
    5,780.38x = 27,301,715.84
  5. Step 5: Solve for x
    x = 27,301,715.84/5,780.38
  6. Step 6: Final answer
    x = 4,723.17

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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.