Home / 5,445.02-7,514.28-3,087.20

Finding the Fourth Proportional to 5,445.02, 7,514.28 and 3,087.20

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Solution

The fourth proportional to 5,445.02, 7,514.28 and 3,087.20 is: 4,260.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.02 : 7,514.28 = 3,087.20 : x
  2. Step 2: Convert to fraction form
    5,445.02/7,514.28 = 3,087.20/x
  3. Step 3: Cross multiply
    5,445.02x = 7,514.28 × 3,087.20
  4. Step 4: Simplify right side
    5,445.02x = 23,198,047.64
  5. Step 5: Solve for x
    x = 23,198,047.64/5,445.02
  6. Step 6: Final answer
    x = 4,260.42

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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.