Home / 1,567.10-2,162.62-858.89

Finding the Fourth Proportional to 1,567.10, 2,162.62 and 858.89

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Solution

The fourth proportional to 1,567.10, 2,162.62 and 858.89 is: 1,185.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.10 : 2,162.62 = 858.89 : x
  2. Step 2: Convert to fraction form
    1,567.10/2,162.62 = 858.89/x
  3. Step 3: Cross multiply
    1,567.10x = 2,162.62 × 858.89
  4. Step 4: Simplify right side
    1,567.10x = 1,857,452.70
  5. Step 5: Solve for x
    x = 1,857,452.70/1,567.10
  6. Step 6: Final answer
    x = 1,185.28

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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.