Home / 2,454.63-3,387.39-1,406.76

Finding the Fourth Proportional to 2,454.63, 3,387.39 and 1,406.76

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Solution

The fourth proportional to 2,454.63, 3,387.39 and 1,406.76 is: 1,941.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.63 : 3,387.39 = 1,406.76 : x
  2. Step 2: Convert to fraction form
    2,454.63/3,387.39 = 1,406.76/x
  3. Step 3: Cross multiply
    2,454.63x = 3,387.39 × 1,406.76
  4. Step 4: Simplify right side
    2,454.63x = 4,765,244.76
  5. Step 5: Solve for x
    x = 4,765,244.76/2,454.63
  6. Step 6: Final answer
    x = 1,941.33

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Half scale
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Double scale
Find fourth proportional to 2,455.63, 3,388.77 and 1,407.76
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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.