Home / 5,202.25-7,178.54-3,077.86

Finding the Fourth Proportional to 5,202.25, 7,178.54 and 3,077.86

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Solution

The fourth proportional to 5,202.25, 7,178.54 and 3,077.86 is: 4,247.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,202.25 : 7,178.54 = 3,077.86 : x
  2. Step 2: Convert to fraction form
    5,202.25/7,178.54 = 3,077.86/x
  3. Step 3: Cross multiply
    5,202.25x = 7,178.54 × 3,077.86
  4. Step 4: Simplify right side
    5,202.25x = 22,094,541.12
  5. Step 5: Solve for x
    x = 22,094,541.12/5,202.25
  6. Step 6: Final answer
    x = 4,247.11

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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.