Home / 1,927.78-2,660.28-1,088.47

Finding the Fourth Proportional to 1,927.78, 2,660.28 and 1,088.47

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Solution

The fourth proportional to 1,927.78, 2,660.28 and 1,088.47 is: 1,502.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.78 : 2,660.28 = 1,088.47 : x
  2. Step 2: Convert to fraction form
    1,927.78/2,660.28 = 1,088.47/x
  3. Step 3: Cross multiply
    1,927.78x = 2,660.28 × 1,088.47
  4. Step 4: Simplify right side
    1,927.78x = 2,895,634.22
  5. Step 5: Solve for x
    x = 2,895,634.22/1,927.78
  6. Step 6: Final answer
    x = 1,502.06

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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.