Home / 1,567.15-2,161.71-1,230.55

Finding the Fourth Proportional to 1,567.15, 2,161.71 and 1,230.55

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Solution

The fourth proportional to 1,567.15, 2,161.71 and 1,230.55 is: 1,697.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.15 : 2,161.71 = 1,230.55 : x
  2. Step 2: Convert to fraction form
    1,567.15/2,161.71 = 1,230.55/x
  3. Step 3: Cross multiply
    1,567.15x = 2,161.71 × 1,230.55
  4. Step 4: Simplify right side
    1,567.15x = 2,660,092.24
  5. Step 5: Solve for x
    x = 2,660,092.24/1,567.15
  6. Step 6: Final answer
    x = 1,697.41

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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.