Home / 2,459.48-3,689.49-1,227.20

Finding the Fourth Proportional to 2,459.48, 3,689.49 and 1,227.20

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Solution

The fourth proportional to 2,459.48, 3,689.49 and 1,227.20 is: 1,840.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,459.48 : 3,689.49 = 1,227.20 : x
  2. Step 2: Convert to fraction form
    2,459.48/3,689.49 = 1,227.20/x
  3. Step 3: Cross multiply
    2,459.48x = 3,689.49 × 1,227.20
  4. Step 4: Simplify right side
    2,459.48x = 4,527,742.13
  5. Step 5: Solve for x
    x = 4,527,742.13/2,459.48
  6. Step 6: Final answer
    x = 1,840.93

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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.