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Finding the Fourth Proportional to 885.52, 1,223.49 and 700.93

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Solution

The fourth proportional to 885.52, 1,223.49 and 700.93 is: 968.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    885.52 : 1,223.49 = 700.93 : x
  2. Step 2: Convert to fraction form
    885.52/1,223.49 = 700.93/x
  3. Step 3: Cross multiply
    885.52x = 1,223.49 × 700.93
  4. Step 4: Simplify right side
    885.52x = 857,580.85
  5. Step 5: Solve for x
    x = 857,580.85/885.52
  6. Step 6: Final answer
    x = 968.45

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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.