Home / 2,871.06-3,960.81-1,675.95

Finding the Fourth Proportional to 2,871.06, 3,960.81 and 1,675.95

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Solution

The fourth proportional to 2,871.06, 3,960.81 and 1,675.95 is: 2,312.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.06 : 3,960.81 = 1,675.95 : x
  2. Step 2: Convert to fraction form
    2,871.06/3,960.81 = 1,675.95/x
  3. Step 3: Cross multiply
    2,871.06x = 3,960.81 × 1,675.95
  4. Step 4: Simplify right side
    2,871.06x = 6,638,119.52
  5. Step 5: Solve for x
    x = 6,638,119.52/2,871.06
  6. Step 6: Final answer
    x = 2,312.08

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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.