Home / 3,686.14-5,085.22-2,490.74

Finding the Fourth Proportional to 3,686.14, 5,085.22 and 2,490.74

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Solution

The fourth proportional to 3,686.14, 5,085.22 and 2,490.74 is: 3,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.14 : 5,085.22 = 2,490.74 : x
  2. Step 2: Convert to fraction form
    3,686.14/5,085.22 = 2,490.74/x
  3. Step 3: Cross multiply
    3,686.14x = 5,085.22 × 2,490.74
  4. Step 4: Simplify right side
    3,686.14x = 12,665,960.86
  5. Step 5: Solve for x
    x = 12,665,960.86/3,686.14
  6. Step 6: Final answer
    x = 3,436.10

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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.