Home / 2,689.07-4,033.26-741.11

Finding the Fourth Proportional to 2,689.07, 4,033.26 and 741.11

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Solution

The fourth proportional to 2,689.07, 4,033.26 and 741.11 is: 1,111.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.07 : 4,033.26 = 741.11 : x
  2. Step 2: Convert to fraction form
    2,689.07/4,033.26 = 741.11/x
  3. Step 3: Cross multiply
    2,689.07x = 4,033.26 × 741.11
  4. Step 4: Simplify right side
    2,689.07x = 2,989,069.15
  5. Step 5: Solve for x
    x = 2,989,069.15/2,689.07
  6. Step 6: Final answer
    x = 1,111.56

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1.5x scale

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.