Home / 5,255.02-7,251.93-2,897.20

Finding the Fourth Proportional to 5,255.02, 7,251.93 and 2,897.20

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Solution

The fourth proportional to 5,255.02, 7,251.93 and 2,897.20 is: 3,998.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.02 : 7,251.93 = 2,897.20 : x
  2. Step 2: Convert to fraction form
    5,255.02/7,251.93 = 2,897.20/x
  3. Step 3: Cross multiply
    5,255.02x = 7,251.93 × 2,897.20
  4. Step 4: Simplify right side
    5,255.02x = 21,010,277.11
  5. Step 5: Solve for x
    x = 21,010,277.11/5,255.02
  6. Step 6: Final answer
    x = 3,998.13

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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.