Home / 4,301.20-6,455.40-1,964.80

Finding the Fourth Proportional to 4,301.20, 6,455.40 and 1,964.80

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Solution

The fourth proportional to 4,301.20, 6,455.40 and 1,964.80 is: 2,948.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,301.20 : 6,455.40 = 1,964.80 : x
  2. Step 2: Convert to fraction form
    4,301.20/6,455.40 = 1,964.80/x
  3. Step 3: Cross multiply
    4,301.20x = 6,455.40 × 1,964.80
  4. Step 4: Simplify right side
    4,301.20x = 12,683,569.92
  5. Step 5: Solve for x
    x = 12,683,569.92/4,301.20
  6. Step 6: Final answer
    x = 2,948.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.