Home / 2,420.72-3,339.24-1,489.04

Finding the Fourth Proportional to 2,420.72, 3,339.24 and 1,489.04

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Solution

The fourth proportional to 2,420.72, 3,339.24 and 1,489.04 is: 2,054.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.72 : 3,339.24 = 1,489.04 : x
  2. Step 2: Convert to fraction form
    2,420.72/3,339.24 = 1,489.04/x
  3. Step 3: Cross multiply
    2,420.72x = 3,339.24 × 1,489.04
  4. Step 4: Simplify right side
    2,420.72x = 4,972,261.93
  5. Step 5: Solve for x
    x = 4,972,261.93/2,420.72
  6. Step 6: Final answer
    x = 2,054.04

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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.