Home / 3,417.20-5,125.80-1,226.15

Finding the Fourth Proportional to 3,417.20, 5,125.80 and 1,226.15

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Solution

The fourth proportional to 3,417.20, 5,125.80 and 1,226.15 is: 1,839.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.20 : 5,125.80 = 1,226.15 : x
  2. Step 2: Convert to fraction form
    3,417.20/5,125.80 = 1,226.15/x
  3. Step 3: Cross multiply
    3,417.20x = 5,125.80 × 1,226.15
  4. Step 4: Simplify right side
    3,417.20x = 6,284,999.67
  5. Step 5: Solve for x
    x = 6,284,999.67/3,417.20
  6. Step 6: Final answer
    x = 1,839.23

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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.