Home / 5,420.64-7,480.36-3,063.52

Finding the Fourth Proportional to 5,420.64, 7,480.36 and 3,063.52

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Solution

The fourth proportional to 5,420.64, 7,480.36 and 3,063.52 is: 4,227.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.64 : 7,480.36 = 3,063.52 : x
  2. Step 2: Convert to fraction form
    5,420.64/7,480.36 = 3,063.52/x
  3. Step 3: Cross multiply
    5,420.64x = 7,480.36 × 3,063.52
  4. Step 4: Simplify right side
    5,420.64x = 22,916,232.47
  5. Step 5: Solve for x
    x = 22,916,232.47/5,420.64
  6. Step 6: Final answer
    x = 4,227.59

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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.