Home / 3,454.40-4,764.64-2,127.68

Finding the Fourth Proportional to 3,454.40, 4,764.64 and 2,127.68

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Solution

The fourth proportional to 3,454.40, 4,764.64 and 2,127.68 is: 2,934.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,454.40 : 4,764.64 = 2,127.68 : x
  2. Step 2: Convert to fraction form
    3,454.40/4,764.64 = 2,127.68/x
  3. Step 3: Cross multiply
    3,454.40x = 4,764.64 × 2,127.68
  4. Step 4: Simplify right side
    3,454.40x = 10,137,629.24
  5. Step 5: Solve for x
    x = 10,137,629.24/3,454.40
  6. Step 6: Final answer
    x = 2,934.70

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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.