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Finding the Fourth Proportional to 835.60, 1,153.14 and 462.58

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Solution

The fourth proportional to 835.60, 1,153.14 and 462.58 is: 638.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.60 : 1,153.14 = 462.58 : x
  2. Step 2: Convert to fraction form
    835.60/1,153.14 = 462.58/x
  3. Step 3: Cross multiply
    835.60x = 1,153.14 × 462.58
  4. Step 4: Simplify right side
    835.60x = 533,419.50
  5. Step 5: Solve for x
    x = 533,419.50/835.60
  6. Step 6: Final answer
    x = 638.37

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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.