Home / 5,320.64-7,341.12-3,224.72

Finding the Fourth Proportional to 5,320.64, 7,341.12 and 3,224.72

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Solution

The fourth proportional to 5,320.64, 7,341.12 and 3,224.72 is: 4,449.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.64 : 7,341.12 = 3,224.72 : x
  2. Step 2: Convert to fraction form
    5,320.64/7,341.12 = 3,224.72/x
  3. Step 3: Cross multiply
    5,320.64x = 7,341.12 × 3,224.72
  4. Step 4: Simplify right side
    5,320.64x = 23,673,056.49
  5. Step 5: Solve for x
    x = 23,673,056.49/5,320.64
  6. Step 6: Final answer
    x = 4,449.29

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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.