Home / 3,113.11-4,293.04-2,642.31

Finding the Fourth Proportional to 3,113.11, 4,293.04 and 2,642.31

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Solution

The fourth proportional to 3,113.11, 4,293.04 and 2,642.31 is: 3,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.11 : 4,293.04 = 2,642.31 : x
  2. Step 2: Convert to fraction form
    3,113.11/4,293.04 = 2,642.31/x
  3. Step 3: Cross multiply
    3,113.11x = 4,293.04 × 2,642.31
  4. Step 4: Simplify right side
    3,113.11x = 11,343,542.52
  5. Step 5: Solve for x
    x = 11,343,542.52/3,113.11
  6. Step 6: Final answer
    x = 3,643.80

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1.5x scale

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.