Home / 2,177.40-3,005.10-1,479

Finding the Fourth Proportional to 2,177.40, 3,005.10 and 1,479

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Solution

The fourth proportional to 2,177.40, 3,005.10 and 1,479 is: 2,041.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.40 : 3,005.10 = 1,479 : x
  2. Step 2: Convert to fraction form
    2,177.40/3,005.10 = 1,479/x
  3. Step 3: Cross multiply
    2,177.40x = 3,005.10 × 1,479
  4. Step 4: Simplify right side
    2,177.40x = 4,444,542.90
  5. Step 5: Solve for x
    x = 4,444,542.90/2,177.40
  6. Step 6: Final answer
    x = 2,041.22

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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.