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Finding the Fourth Proportional to 835.89, 1,152.95 and 574.53

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Solution

The fourth proportional to 835.89, 1,152.95 and 574.53 is: 792.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.89 : 1,152.95 = 574.53 : x
  2. Step 2: Convert to fraction form
    835.89/1,152.95 = 574.53/x
  3. Step 3: Cross multiply
    835.89x = 1,152.95 × 574.53
  4. Step 4: Simplify right side
    835.89x = 662,401.49
  5. Step 5: Solve for x
    x = 662,401.49/835.89
  6. Step 6: Final answer
    x = 792.45

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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.