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Finding the Fourth Proportional to 887.49, 1,225.94 and 701.19

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Solution

The fourth proportional to 887.49, 1,225.94 and 701.19 is: 968.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.49 : 1,225.94 = 701.19 : x
  2. Step 2: Convert to fraction form
    887.49/1,225.94 = 701.19/x
  3. Step 3: Cross multiply
    887.49x = 1,225.94 × 701.19
  4. Step 4: Simplify right side
    887.49x = 859,613.36
  5. Step 5: Solve for x
    x = 859,613.36/887.49
  6. Step 6: Final answer
    x = 968.59

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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.