Home / 7,102.15-10,653.23-3,151.88

Finding the Fourth Proportional to 7,102.15, 10,653.23 and 3,151.88

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Solution

The fourth proportional to 7,102.15, 10,653.23 and 3,151.88 is: 4,727.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,102.15 : 10,653.23 = 3,151.88 : x
  2. Step 2: Convert to fraction form
    7,102.15/10,653.23 = 3,151.88/x
  3. Step 3: Cross multiply
    7,102.15x = 10,653.23 × 3,151.88
  4. Step 4: Simplify right side
    7,102.15x = 33,577,702.57
  5. Step 5: Solve for x
    x = 33,577,702.57/7,102.15
  6. Step 6: Final answer
    x = 4,727.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.