Home / 1,934.38-2,669.43-1,515.16

Finding the Fourth Proportional to 1,934.38, 2,669.43 and 1,515.16

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Solution

The fourth proportional to 1,934.38, 2,669.43 and 1,515.16 is: 2,090.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.38 : 2,669.43 = 1,515.16 : x
  2. Step 2: Convert to fraction form
    1,934.38/2,669.43 = 1,515.16/x
  3. Step 3: Cross multiply
    1,934.38x = 2,669.43 × 1,515.16
  4. Step 4: Simplify right side
    1,934.38x = 4,044,613.56
  5. Step 5: Solve for x
    x = 4,044,613.56/1,934.38
  6. Step 6: Final answer
    x = 2,090.91

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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.