Home / 1,514.77-2,090.26-851.49

Finding the Fourth Proportional to 1,514.77, 2,090.26 and 851.49

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Solution

The fourth proportional to 1,514.77, 2,090.26 and 851.49 is: 1,174.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.77 : 2,090.26 = 851.49 : x
  2. Step 2: Convert to fraction form
    1,514.77/2,090.26 = 851.49/x
  3. Step 3: Cross multiply
    1,514.77x = 2,090.26 × 851.49
  4. Step 4: Simplify right side
    1,514.77x = 1,779,835.49
  5. Step 5: Solve for x
    x = 1,779,835.49/1,514.77
  6. Step 6: Final answer
    x = 1,174.99

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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.