Home / 1,515.10-2,090.94-1,141.42

Finding the Fourth Proportional to 1,515.10, 2,090.94 and 1,141.42

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Solution

The fourth proportional to 1,515.10, 2,090.94 and 1,141.42 is: 1,575.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.10 : 2,090.94 = 1,141.42 : x
  2. Step 2: Convert to fraction form
    1,515.10/2,090.94 = 1,141.42/x
  3. Step 3: Cross multiply
    1,515.10x = 2,090.94 × 1,141.42
  4. Step 4: Simplify right side
    1,515.10x = 2,386,640.73
  5. Step 5: Solve for x
    x = 2,386,640.73/1,515.10
  6. Step 6: Final answer
    x = 1,575.24

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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.