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Finding the Fourth Proportional to 882.95, 1,218.45 and 533.57

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Solution

The fourth proportional to 882.95, 1,218.45 and 533.57 is: 736.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.95 : 1,218.45 = 533.57 : x
  2. Step 2: Convert to fraction form
    882.95/1,218.45 = 533.57/x
  3. Step 3: Cross multiply
    882.95x = 1,218.45 × 533.57
  4. Step 4: Simplify right side
    882.95x = 650,122.27
  5. Step 5: Solve for x
    x = 650,122.27/882.95
  6. Step 6: Final answer
    x = 736.31

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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.