Home / 2,079.84-3,130.30-1,562.64

Finding the Fourth Proportional to 2,079.84, 3,130.30 and 1,562.64

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Solution

The fourth proportional to 2,079.84, 3,130.30 and 1,562.64 is: 2,351.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.84 : 3,130.30 = 1,562.64 : x
  2. Step 2: Convert to fraction form
    2,079.84/3,130.30 = 1,562.64/x
  3. Step 3: Cross multiply
    2,079.84x = 3,130.30 × 1,562.64
  4. Step 4: Simplify right side
    2,079.84x = 4,891,531.99
  5. Step 5: Solve for x
    x = 4,891,531.99/2,079.84
  6. Step 6: Final answer
    x = 2,351.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.