Home / 2,454.30-3,387.15-1,406.70

Finding the Fourth Proportional to 2,454.30, 3,387.15 and 1,406.70

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Solution

The fourth proportional to 2,454.30, 3,387.15 and 1,406.70 is: 1,941.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.30 : 3,387.15 = 1,406.70 : x
  2. Step 2: Convert to fraction form
    2,454.30/3,387.15 = 1,406.70/x
  3. Step 3: Cross multiply
    2,454.30x = 3,387.15 × 1,406.70
  4. Step 4: Simplify right side
    2,454.30x = 4,764,703.91
  5. Step 5: Solve for x
    x = 4,764,703.91/2,454.30
  6. Step 6: Final answer
    x = 1,941.37

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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.