Home / 5,420.34-7,479.81-3,062.82

Finding the Fourth Proportional to 5,420.34, 7,479.81 and 3,062.82

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Solution

The fourth proportional to 5,420.34, 7,479.81 and 3,062.82 is: 4,226.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.34 : 7,479.81 = 3,062.82 : x
  2. Step 2: Convert to fraction form
    5,420.34/7,479.81 = 3,062.82/x
  3. Step 3: Cross multiply
    5,420.34x = 7,479.81 × 3,062.82
  4. Step 4: Simplify right side
    5,420.34x = 22,909,311.66
  5. Step 5: Solve for x
    x = 22,909,311.66/5,420.34
  6. Step 6: Final answer
    x = 4,226.55

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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.