Home / 1,660.16-2,291.60-1,031.18

Finding the Fourth Proportional to 1,660.16, 2,291.60 and 1,031.18

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Solution

The fourth proportional to 1,660.16, 2,291.60 and 1,031.18 is: 1,423.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.16 : 2,291.60 = 1,031.18 : x
  2. Step 2: Convert to fraction form
    1,660.16/2,291.60 = 1,031.18/x
  3. Step 3: Cross multiply
    1,660.16x = 2,291.60 × 1,031.18
  4. Step 4: Simplify right side
    1,660.16x = 2,363,043.21
  5. Step 5: Solve for x
    x = 2,363,043.21/1,660.16
  6. Step 6: Final answer
    x = 1,423.38

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1.5x scale

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.