Home / 1,780.62-2,669.48-1,095.18

Finding the Fourth Proportional to 1,780.62, 2,669.48 and 1,095.18

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Solution

The fourth proportional to 1,780.62, 2,669.48 and 1,095.18 is: 1,641.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780.62 : 2,669.48 = 1,095.18 : x
  2. Step 2: Convert to fraction form
    1,780.62/2,669.48 = 1,095.18/x
  3. Step 3: Cross multiply
    1,780.62x = 2,669.48 × 1,095.18
  4. Step 4: Simplify right side
    1,780.62x = 2,923,561.11
  5. Step 5: Solve for x
    x = 2,923,561.11/1,780.62
  6. Step 6: Final answer
    x = 1,641.88

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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.