Home / 2,871.06-4,308.93-1,140.90

Finding the Fourth Proportional to 2,871.06, 4,308.93 and 1,140.90

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Solution

The fourth proportional to 2,871.06, 4,308.93 and 1,140.90 is: 1,712.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.06 : 4,308.93 = 1,140.90 : x
  2. Step 2: Convert to fraction form
    2,871.06/4,308.93 = 1,140.90/x
  3. Step 3: Cross multiply
    2,871.06x = 4,308.93 × 1,140.90
  4. Step 4: Simplify right side
    2,871.06x = 4,916,058.24
  5. Step 5: Solve for x
    x = 4,916,058.24/2,871.06
  6. Step 6: Final answer
    x = 1,712.28

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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.