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Finding the Fourth Proportional to 1,514.38, 2,090.20 and 893.74

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Solution

The fourth proportional to 1,514.38, 2,090.20 and 893.74 is: 1,233.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.38 : 2,090.20 = 893.74 : x
  2. Step 2: Convert to fraction form
    1,514.38/2,090.20 = 893.74/x
  3. Step 3: Cross multiply
    1,514.38x = 2,090.20 × 893.74
  4. Step 4: Simplify right side
    1,514.38x = 1,868,095.35
  5. Step 5: Solve for x
    x = 1,868,095.35/1,514.38
  6. Step 6: Final answer
    x = 1,233.57

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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.