Home / 1,721.61-2,582.55-1,179.18

Finding the Fourth Proportional to 1,721.61, 2,582.55 and 1,179.18

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Solution

The fourth proportional to 1,721.61, 2,582.55 and 1,179.18 is: 1,768.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.61 : 2,582.55 = 1,179.18 : x
  2. Step 2: Convert to fraction form
    1,721.61/2,582.55 = 1,179.18/x
  3. Step 3: Cross multiply
    1,721.61x = 2,582.55 × 1,179.18
  4. Step 4: Simplify right side
    1,721.61x = 3,045,291.31
  5. Step 5: Solve for x
    x = 3,045,291.31/1,721.61
  6. Step 6: Final answer
    x = 1,768.86

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1.5x scale

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.