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Finding the Fourth Proportional to 3,973.04, 5,959.72 and 1,340.80

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Solution

The fourth proportional to 3,973.04, 5,959.72 and 1,340.80 is: 2,011.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.04 : 5,959.72 = 1,340.80 : x
  2. Step 2: Convert to fraction form
    3,973.04/5,959.72 = 1,340.80/x
  3. Step 3: Cross multiply
    3,973.04x = 5,959.72 × 1,340.80
  4. Step 4: Simplify right side
    3,973.04x = 7,990,792.58
  5. Step 5: Solve for x
    x = 7,990,792.58/3,973.04
  6. Step 6: Final answer
    x = 2,011.25

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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.