Home / 1,567.08-2,162.58-868.46

Finding the Fourth Proportional to 1,567.08, 2,162.58 and 868.46

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Solution

The fourth proportional to 1,567.08, 2,162.58 and 868.46 is: 1,198.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.08 : 2,162.58 = 868.46 : x
  2. Step 2: Convert to fraction form
    1,567.08/2,162.58 = 868.46/x
  3. Step 3: Cross multiply
    1,567.08x = 2,162.58 × 868.46
  4. Step 4: Simplify right side
    1,567.08x = 1,878,108.27
  5. Step 5: Solve for x
    x = 1,878,108.27/1,567.08
  6. Step 6: Final answer
    x = 1,198.47

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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.