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Finding the Fourth Proportional to 1,352.91, 1,866.67 and 793.30

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Solution

The fourth proportional to 1,352.91, 1,866.67 and 793.30 is: 1,094.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.91 : 1,866.67 = 793.30 : x
  2. Step 2: Convert to fraction form
    1,352.91/1,866.67 = 793.30/x
  3. Step 3: Cross multiply
    1,352.91x = 1,866.67 × 793.30
  4. Step 4: Simplify right side
    1,352.91x = 1,480,829.31
  5. Step 5: Solve for x
    x = 1,480,829.31/1,352.91
  6. Step 6: Final answer
    x = 1,094.55

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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.