Home / 5,211.02-7,191.20-2,853.16

Finding the Fourth Proportional to 5,211.02, 7,191.20 and 2,853.16

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Solution

The fourth proportional to 5,211.02, 7,191.20 and 2,853.16 is: 3,937.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.02 : 7,191.20 = 2,853.16 : x
  2. Step 2: Convert to fraction form
    5,211.02/7,191.20 = 2,853.16/x
  3. Step 3: Cross multiply
    5,211.02x = 7,191.20 × 2,853.16
  4. Step 4: Simplify right side
    5,211.02x = 20,517,644.19
  5. Step 5: Solve for x
    x = 20,517,644.19/5,211.02
  6. Step 6: Final answer
    x = 3,937.36

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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.