Home / 1,943.46-2,912.58-888.57

Finding the Fourth Proportional to 1,943.46, 2,912.58 and 888.57

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Solution

The fourth proportional to 1,943.46, 2,912.58 and 888.57 is: 1,331.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.46 : 2,912.58 = 888.57 : x
  2. Step 2: Convert to fraction form
    1,943.46/2,912.58 = 888.57/x
  3. Step 3: Cross multiply
    1,943.46x = 2,912.58 × 888.57
  4. Step 4: Simplify right side
    1,943.46x = 2,588,031.21
  5. Step 5: Solve for x
    x = 2,588,031.21/1,943.46
  6. Step 6: Final answer
    x = 1,331.66

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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.