Home / 1,660.89-2,292.06-1,071.63

Finding the Fourth Proportional to 1,660.89, 2,292.06 and 1,071.63

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Solution

The fourth proportional to 1,660.89, 2,292.06 and 1,071.63 is: 1,478.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.89 : 2,292.06 = 1,071.63 : x
  2. Step 2: Convert to fraction form
    1,660.89/2,292.06 = 1,071.63/x
  3. Step 3: Cross multiply
    1,660.89x = 2,292.06 × 1,071.63
  4. Step 4: Simplify right side
    1,660.89x = 2,456,240.26
  5. Step 5: Solve for x
    x = 2,456,240.26/1,660.89
  6. Step 6: Final answer
    x = 1,478.87

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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.