Home / 4,079.61-6,122.16-1,857.51

Finding the Fourth Proportional to 4,079.61, 6,122.16 and 1,857.51

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Solution

The fourth proportional to 4,079.61, 6,122.16 and 1,857.51 is: 2,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.61 : 6,122.16 = 1,857.51 : x
  2. Step 2: Convert to fraction form
    4,079.61/6,122.16 = 1,857.51/x
  3. Step 3: Cross multiply
    4,079.61x = 6,122.16 × 1,857.51
  4. Step 4: Simplify right side
    4,079.61x = 11,371,973.42
  5. Step 5: Solve for x
    x = 11,371,973.42/4,079.61
  6. Step 6: Final answer
    x = 2,787.51

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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.