Home / 5,158.95-7,119.36-2,801.04

Finding the Fourth Proportional to 5,158.95, 7,119.36 and 2,801.04

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Solution

The fourth proportional to 5,158.95, 7,119.36 and 2,801.04 is: 3,865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.95 : 7,119.36 = 2,801.04 : x
  2. Step 2: Convert to fraction form
    5,158.95/7,119.36 = 2,801.04/x
  3. Step 3: Cross multiply
    5,158.95x = 7,119.36 × 2,801.04
  4. Step 4: Simplify right side
    5,158.95x = 19,941,562.53
  5. Step 5: Solve for x
    x = 19,941,562.53/5,158.95
  6. Step 6: Final answer
    x = 3,865.43

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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.