Home / 3,970.24-5,479.20-2,202.01

Finding the Fourth Proportional to 3,970.24, 5,479.20 and 2,202.01

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Solution

The fourth proportional to 3,970.24, 5,479.20 and 2,202.01 is: 3,038.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.24 : 5,479.20 = 2,202.01 : x
  2. Step 2: Convert to fraction form
    3,970.24/5,479.20 = 2,202.01/x
  3. Step 3: Cross multiply
    3,970.24x = 5,479.20 × 2,202.01
  4. Step 4: Simplify right side
    3,970.24x = 12,065,225.80
  5. Step 5: Solve for x
    x = 12,065,225.80/3,970.24
  6. Step 6: Final answer
    x = 3,038.92

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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.