Home / 2,488.18-3,425.88-2,177.68

Finding the Fourth Proportional to 2,488.18, 3,425.88 and 2,177.68

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Solution

The fourth proportional to 2,488.18, 3,425.88 and 2,177.68 is: 2,998.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.18 : 3,425.88 = 2,177.68 : x
  2. Step 2: Convert to fraction form
    2,488.18/3,425.88 = 2,177.68/x
  3. Step 3: Cross multiply
    2,488.18x = 3,425.88 × 2,177.68
  4. Step 4: Simplify right side
    2,488.18x = 7,460,470.36
  5. Step 5: Solve for x
    x = 7,460,470.36/2,488.18
  6. Step 6: Final answer
    x = 2,998.36

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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.