Home / 4,168.45-6,248.57-1,978.71

Finding the Fourth Proportional to 4,168.45, 6,248.57 and 1,978.71

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Solution

The fourth proportional to 4,168.45, 6,248.57 and 1,978.71 is: 2,966.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,168.45 : 6,248.57 = 1,978.71 : x
  2. Step 2: Convert to fraction form
    4,168.45/6,248.57 = 1,978.71/x
  3. Step 3: Cross multiply
    4,168.45x = 6,248.57 × 1,978.71
  4. Step 4: Simplify right side
    4,168.45x = 12,364,115.33
  5. Step 5: Solve for x
    x = 12,364,115.33/4,168.45
  6. Step 6: Final answer
    x = 2,966.12

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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.