Home / 2,456.90-3,390.36-1,449.02

Finding the Fourth Proportional to 2,456.90, 3,390.36 and 1,449.02

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Solution

The fourth proportional to 2,456.90, 3,390.36 and 1,449.02 is: 1,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.90 : 3,390.36 = 1,449.02 : x
  2. Step 2: Convert to fraction form
    2,456.90/3,390.36 = 1,449.02/x
  3. Step 3: Cross multiply
    2,456.90x = 3,390.36 × 1,449.02
  4. Step 4: Simplify right side
    2,456.90x = 4,912,699.45
  5. Step 5: Solve for x
    x = 4,912,699.45/2,456.90
  6. Step 6: Final answer
    x = 1,999.55

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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.