Home / 2,902.40-4,354.24-1,439.68

Finding the Fourth Proportional to 2,902.40, 4,354.24 and 1,439.68

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Solution

The fourth proportional to 2,902.40, 4,354.24 and 1,439.68 is: 2,159.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.40 : 4,354.24 = 1,439.68 : x
  2. Step 2: Convert to fraction form
    2,902.40/4,354.24 = 1,439.68/x
  3. Step 3: Cross multiply
    2,902.40x = 4,354.24 × 1,439.68
  4. Step 4: Simplify right side
    2,902.40x = 6,268,712.24
  5. Step 5: Solve for x
    x = 6,268,712.24/2,902.40
  6. Step 6: Final answer
    x = 2,159.84

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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.