Home / 1,514.89-2,090.66-917.53

Finding the Fourth Proportional to 1,514.89, 2,090.66 and 917.53

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Solution

The fourth proportional to 1,514.89, 2,090.66 and 917.53 is: 1,266.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.89 : 2,090.66 = 917.53 : x
  2. Step 2: Convert to fraction form
    1,514.89/2,090.66 = 917.53/x
  3. Step 3: Cross multiply
    1,514.89x = 2,090.66 × 917.53
  4. Step 4: Simplify right side
    1,514.89x = 1,918,243.27
  5. Step 5: Solve for x
    x = 1,918,243.27/1,514.89
  6. Step 6: Final answer
    x = 1,266.26

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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.