Home / 2,126.85-3,192.60-1,569.82

Finding the Fourth Proportional to 2,126.85, 3,192.60 and 1,569.82

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Solution

The fourth proportional to 2,126.85, 3,192.60 and 1,569.82 is: 2,356.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.85 : 3,192.60 = 1,569.82 : x
  2. Step 2: Convert to fraction form
    2,126.85/3,192.60 = 1,569.82/x
  3. Step 3: Cross multiply
    2,126.85x = 3,192.60 × 1,569.82
  4. Step 4: Simplify right side
    2,126.85x = 5,011,807.33
  5. Step 5: Solve for x
    x = 5,011,807.33/2,126.85
  6. Step 6: Final answer
    x = 2,356.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.