Home / 4,456.90-6,151.80-3,130.96

Finding the Fourth Proportional to 4,456.90, 6,151.80 and 3,130.96

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Solution

The fourth proportional to 4,456.90, 6,151.80 and 3,130.96 is: 4,321.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,456.90 : 6,151.80 = 3,130.96 : x
  2. Step 2: Convert to fraction form
    4,456.90/6,151.80 = 3,130.96/x
  3. Step 3: Cross multiply
    4,456.90x = 6,151.80 × 3,130.96
  4. Step 4: Simplify right side
    4,456.90x = 19,261,039.73
  5. Step 5: Solve for x
    x = 19,261,039.73/4,456.90
  6. Step 6: Final answer
    x = 4,321.62

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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.