Home / 2,176.12-3,258.95-1,248.87

Finding the Fourth Proportional to 2,176.12, 3,258.95 and 1,248.87

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Solution

The fourth proportional to 2,176.12, 3,258.95 and 1,248.87 is: 1,870.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.12 : 3,258.95 = 1,248.87 : x
  2. Step 2: Convert to fraction form
    2,176.12/3,258.95 = 1,248.87/x
  3. Step 3: Cross multiply
    2,176.12x = 3,258.95 × 1,248.87
  4. Step 4: Simplify right side
    2,176.12x = 4,070,008.01
  5. Step 5: Solve for x
    x = 4,070,008.01/2,176.12
  6. Step 6: Final answer
    x = 1,870.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.