Home / 1,514.93-2,090.70-885.60

Finding the Fourth Proportional to 1,514.93, 2,090.70 and 885.60

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Solution

The fourth proportional to 1,514.93, 2,090.70 and 885.60 is: 1,222.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.93 : 2,090.70 = 885.60 : x
  2. Step 2: Convert to fraction form
    1,514.93/2,090.70 = 885.60/x
  3. Step 3: Cross multiply
    1,514.93x = 2,090.70 × 885.60
  4. Step 4: Simplify right side
    1,514.93x = 1,851,523.92
  5. Step 5: Solve for x
    x = 1,851,523.92/1,514.93
  6. Step 6: Final answer
    x = 1,222.19

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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.