Home / 1,660.22-2,291.28-1,031.15

Finding the Fourth Proportional to 1,660.22, 2,291.28 and 1,031.15

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Solution

The fourth proportional to 1,660.22, 2,291.28 and 1,031.15 is: 1,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.22 : 2,291.28 = 1,031.15 : x
  2. Step 2: Convert to fraction form
    1,660.22/2,291.28 = 1,031.15/x
  3. Step 3: Cross multiply
    1,660.22x = 2,291.28 × 1,031.15
  4. Step 4: Simplify right side
    1,660.22x = 2,362,653.37
  5. Step 5: Solve for x
    x = 2,362,653.37/1,660.22
  6. Step 6: Final answer
    x = 1,423.10

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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.