Home / 3,010.20-4,515.13-1,785.40

Finding the Fourth Proportional to 3,010.20, 4,515.13 and 1,785.40

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Solution

The fourth proportional to 3,010.20, 4,515.13 and 1,785.40 is: 2,677.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,010.20 : 4,515.13 = 1,785.40 : x
  2. Step 2: Convert to fraction form
    3,010.20/4,515.13 = 1,785.40/x
  3. Step 3: Cross multiply
    3,010.20x = 4,515.13 × 1,785.40
  4. Step 4: Simplify right side
    3,010.20x = 8,061,290.42
  5. Step 5: Solve for x
    x = 8,061,290.42/3,010.20
  6. Step 6: Final answer
    x = 2,677.99

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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.