Home / 1,927.72-2,660.32-1,088.46

Finding the Fourth Proportional to 1,927.72, 2,660.32 and 1,088.46

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Solution

The fourth proportional to 1,927.72, 2,660.32 and 1,088.46 is: 1,502.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.72 : 2,660.32 = 1,088.46 : x
  2. Step 2: Convert to fraction form
    1,927.72/2,660.32 = 1,088.46/x
  3. Step 3: Cross multiply
    1,927.72x = 2,660.32 × 1,088.46
  4. Step 4: Simplify right side
    1,927.72x = 2,895,657.69
  5. Step 5: Solve for x
    x = 2,895,657.69/1,927.72
  6. Step 6: Final answer
    x = 1,502.11

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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.