Home / 2,179.47-3,005.19-1,654.59

Finding the Fourth Proportional to 2,179.47, 3,005.19 and 1,654.59

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Solution

The fourth proportional to 2,179.47, 3,005.19 and 1,654.59 is: 2,281.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.47 : 3,005.19 = 1,654.59 : x
  2. Step 2: Convert to fraction form
    2,179.47/3,005.19 = 1,654.59/x
  3. Step 3: Cross multiply
    2,179.47x = 3,005.19 × 1,654.59
  4. Step 4: Simplify right side
    2,179.47x = 4,972,357.32
  5. Step 5: Solve for x
    x = 4,972,357.32/2,179.47
  6. Step 6: Final answer
    x = 2,281.45

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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.