Home / 4,089.38-5,643.15-2,320.75

Finding the Fourth Proportional to 4,089.38, 5,643.15 and 2,320.75

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Solution

The fourth proportional to 4,089.38, 5,643.15 and 2,320.75 is: 3,202.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.38 : 5,643.15 = 2,320.75 : x
  2. Step 2: Convert to fraction form
    4,089.38/5,643.15 = 2,320.75/x
  3. Step 3: Cross multiply
    4,089.38x = 5,643.15 × 2,320.75
  4. Step 4: Simplify right side
    4,089.38x = 13,096,312.15
  5. Step 5: Solve for x
    x = 13,096,312.15/4,089.38
  6. Step 6: Final answer
    x = 3,202.52

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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.