Home / 1,514.57-2,090.16-851.40

Finding the Fourth Proportional to 1,514.57, 2,090.16 and 851.40

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Solution

The fourth proportional to 1,514.57, 2,090.16 and 851.40 is: 1,174.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.57 : 2,090.16 = 851.40 : x
  2. Step 2: Convert to fraction form
    1,514.57/2,090.16 = 851.40/x
  3. Step 3: Cross multiply
    1,514.57x = 2,090.16 × 851.40
  4. Step 4: Simplify right side
    1,514.57x = 1,779,562.22
  5. Step 5: Solve for x
    x = 1,779,562.22/1,514.57
  6. Step 6: Final answer
    x = 1,174.97

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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.