Home / 7,158.77-9,878.60-4,134.02

Finding the Fourth Proportional to 7,158.77, 9,878.60 and 4,134.02

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Solution

The fourth proportional to 7,158.77, 9,878.60 and 4,134.02 is: 5,704.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.77 : 9,878.60 = 4,134.02 : x
  2. Step 2: Convert to fraction form
    7,158.77/9,878.60 = 4,134.02/x
  3. Step 3: Cross multiply
    7,158.77x = 9,878.60 × 4,134.02
  4. Step 4: Simplify right side
    7,158.77x = 40,838,280.58
  5. Step 5: Solve for x
    x = 40,838,280.58/7,158.77
  6. Step 6: Final answer
    x = 5,704.65

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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.