Home / 4,079.04-5,631.40-2,685.84

Finding the Fourth Proportional to 4,079.04, 5,631.40 and 2,685.84

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Solution

The fourth proportional to 4,079.04, 5,631.40 and 2,685.84 is: 3,707.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.04 : 5,631.40 = 2,685.84 : x
  2. Step 2: Convert to fraction form
    4,079.04/5,631.40 = 2,685.84/x
  3. Step 3: Cross multiply
    4,079.04x = 5,631.40 × 2,685.84
  4. Step 4: Simplify right side
    4,079.04x = 15,125,011.22
  5. Step 5: Solve for x
    x = 15,125,011.22/4,079.04
  6. Step 6: Final answer
    x = 3,707.99

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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.