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Finding the Fourth Proportional to 2,490.35, 3,734.81 and 846.86

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Solution

The fourth proportional to 2,490.35, 3,734.81 and 846.86 is: 1,270.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.35 : 3,734.81 = 846.86 : x
  2. Step 2: Convert to fraction form
    2,490.35/3,734.81 = 846.86/x
  3. Step 3: Cross multiply
    2,490.35x = 3,734.81 × 846.86
  4. Step 4: Simplify right side
    2,490.35x = 3,162,841.46
  5. Step 5: Solve for x
    x = 3,162,841.46/2,490.35
  6. Step 6: Final answer
    x = 1,270.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.