Home / 1,927.80-2,660.19-1,088.49

Finding the Fourth Proportional to 1,927.80, 2,660.19 and 1,088.49

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Solution

The fourth proportional to 1,927.80, 2,660.19 and 1,088.49 is: 1,502.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.80 : 2,660.19 = 1,088.49 : x
  2. Step 2: Convert to fraction form
    1,927.80/2,660.19 = 1,088.49/x
  3. Step 3: Cross multiply
    1,927.80x = 2,660.19 × 1,088.49
  4. Step 4: Simplify right side
    1,927.80x = 2,895,590.21
  5. Step 5: Solve for x
    x = 2,895,590.21/1,927.80
  6. Step 6: Final answer
    x = 1,502.02

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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.