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Finding the Fourth Proportional to 835.14, 1,152.96 and 555.75

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Solution

The fourth proportional to 835.14, 1,152.96 and 555.75 is: 767.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.14 : 1,152.96 = 555.75 : x
  2. Step 2: Convert to fraction form
    835.14/1,152.96 = 555.75/x
  3. Step 3: Cross multiply
    835.14x = 1,152.96 × 555.75
  4. Step 4: Simplify right side
    835.14x = 640,754.74
  5. Step 5: Solve for x
    x = 640,754.74/835.14
  6. Step 6: Final answer
    x = 767.25

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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.