Home / 3,686.28-5,085.45-2,458.77

Finding the Fourth Proportional to 3,686.28, 5,085.45 and 2,458.77

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Solution

The fourth proportional to 3,686.28, 5,085.45 and 2,458.77 is: 3,392.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.28 : 5,085.45 = 2,458.77 : x
  2. Step 2: Convert to fraction form
    3,686.28/5,085.45 = 2,458.77/x
  3. Step 3: Cross multiply
    3,686.28x = 5,085.45 × 2,458.77
  4. Step 4: Simplify right side
    3,686.28x = 12,503,951.90
  5. Step 5: Solve for x
    x = 12,503,951.90/3,686.28
  6. Step 6: Final answer
    x = 3,392.02

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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.