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Finding the Fourth Proportional to 2,881.80, 4,320.84 and 1,582.92

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Solution

The fourth proportional to 2,881.80, 4,320.84 and 1,582.92 is: 2,373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.80 : 4,320.84 = 1,582.92 : x
  2. Step 2: Convert to fraction form
    2,881.80/4,320.84 = 1,582.92/x
  3. Step 3: Cross multiply
    2,881.80x = 4,320.84 × 1,582.92
  4. Step 4: Simplify right side
    2,881.80x = 6,839,544.05
  5. Step 5: Solve for x
    x = 6,839,544.05/2,881.80
  6. Step 6: Final answer
    x = 2,373.36

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1.5x scale

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.