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Finding the Fourth Proportional to 955.83, 1,319 and 536.19

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Solution

The fourth proportional to 955.83, 1,319 and 536.19 is: 739.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.83 : 1,319 = 536.19 : x
  2. Step 2: Convert to fraction form
    955.83/1,319 = 536.19/x
  3. Step 3: Cross multiply
    955.83x = 1,319 × 536.19
  4. Step 4: Simplify right side
    955.83x = 707,234.61
  5. Step 5: Solve for x
    x = 707,234.61/955.83
  6. Step 6: Final answer
    x = 739.92

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Double scale
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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.