Home / 2,454.76-3,387.36-1,406.80

Finding the Fourth Proportional to 2,454.76, 3,387.36 and 1,406.80

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Solution

The fourth proportional to 2,454.76, 3,387.36 and 1,406.80 is: 1,941.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.76 : 3,387.36 = 1,406.80 : x
  2. Step 2: Convert to fraction form
    2,454.76/3,387.36 = 1,406.80/x
  3. Step 3: Cross multiply
    2,454.76x = 3,387.36 × 1,406.80
  4. Step 4: Simplify right side
    2,454.76x = 4,765,338.05
  5. Step 5: Solve for x
    x = 4,765,338.05/2,454.76
  6. Step 6: Final answer
    x = 1,941.26

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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.