Home / 1,576.15-2,175.08-868.04

Finding the Fourth Proportional to 1,576.15, 2,175.08 and 868.04

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Solution

The fourth proportional to 1,576.15, 2,175.08 and 868.04 is: 1,197.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.15 : 2,175.08 = 868.04 : x
  2. Step 2: Convert to fraction form
    1,576.15/2,175.08 = 868.04/x
  3. Step 3: Cross multiply
    1,576.15x = 2,175.08 × 868.04
  4. Step 4: Simplify right side
    1,576.15x = 1,888,056.44
  5. Step 5: Solve for x
    x = 1,888,056.44/1,576.15
  6. Step 6: Final answer
    x = 1,197.89

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1.5x scale

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.