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Finding the Fourth Proportional to 835.10, 1,152.38 and 462.08

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Solution

The fourth proportional to 835.10, 1,152.38 and 462.08 is: 637.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.10 : 1,152.38 = 462.08 : x
  2. Step 2: Convert to fraction form
    835.10/1,152.38 = 462.08/x
  3. Step 3: Cross multiply
    835.10x = 1,152.38 × 462.08
  4. Step 4: Simplify right side
    835.10x = 532,491.75
  5. Step 5: Solve for x
    x = 532,491.75/835.10
  6. Step 6: Final answer
    x = 637.64

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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.