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Finding the Fourth Proportional to 883.49, 1,216.43 and 750.42

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Solution

The fourth proportional to 883.49, 1,216.43 and 750.42 is: 1,033.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.49 : 1,216.43 = 750.42 : x
  2. Step 2: Convert to fraction form
    883.49/1,216.43 = 750.42/x
  3. Step 3: Cross multiply
    883.49x = 1,216.43 × 750.42
  4. Step 4: Simplify right side
    883.49x = 912,829.65
  5. Step 5: Solve for x
    x = 912,829.65/883.49
  6. Step 6: Final answer
    x = 1,033.21

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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.