Home / 1,668.15-2,302.19-922.18

Finding the Fourth Proportional to 1,668.15, 2,302.19 and 922.18

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Solution

The fourth proportional to 1,668.15, 2,302.19 and 922.18 is: 1,272.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.15 : 2,302.19 = 922.18 : x
  2. Step 2: Convert to fraction form
    1,668.15/2,302.19 = 922.18/x
  3. Step 3: Cross multiply
    1,668.15x = 2,302.19 × 922.18
  4. Step 4: Simplify right side
    1,668.15x = 2,123,033.57
  5. Step 5: Solve for x
    x = 2,123,033.57/1,668.15
  6. Step 6: Final answer
    x = 1,272.69

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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.