Home / 4,656.40-6,418.92-3,081.76

Finding the Fourth Proportional to 4,656.40, 6,418.92 and 3,081.76

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Solution

The fourth proportional to 4,656.40, 6,418.92 and 3,081.76 is: 4,248.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,656.40 : 6,418.92 = 3,081.76 : x
  2. Step 2: Convert to fraction form
    4,656.40/6,418.92 = 3,081.76/x
  3. Step 3: Cross multiply
    4,656.40x = 6,418.92 × 3,081.76
  4. Step 4: Simplify right side
    4,656.40x = 19,781,570.90
  5. Step 5: Solve for x
    x = 19,781,570.90/4,656.40
  6. Step 6: Final answer
    x = 4,248.25

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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.