Home / 5,785.10-8,677.66-1,836.78

Finding the Fourth Proportional to 5,785.10, 8,677.66 and 1,836.78

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Solution

The fourth proportional to 5,785.10, 8,677.66 and 1,836.78 is: 2,755.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.10 : 8,677.66 = 1,836.78 : x
  2. Step 2: Convert to fraction form
    5,785.10/8,677.66 = 1,836.78/x
  3. Step 3: Cross multiply
    5,785.10x = 8,677.66 × 1,836.78
  4. Step 4: Simplify right side
    5,785.10x = 15,938,967.46
  5. Step 5: Solve for x
    x = 15,938,967.46/5,785.10
  6. Step 6: Final answer
    x = 2,755.17

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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.