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Finding the Fourth Proportional to 2,490.21, 3,734.24 and 846.32

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Solution

The fourth proportional to 2,490.21, 3,734.24 and 846.32 is: 1,269.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.21 : 3,734.24 = 846.32 : x
  2. Step 2: Convert to fraction form
    2,490.21/3,734.24 = 846.32/x
  3. Step 3: Cross multiply
    2,490.21x = 3,734.24 × 846.32
  4. Step 4: Simplify right side
    2,490.21x = 3,160,339.09
  5. Step 5: Solve for x
    x = 3,160,339.09/2,490.21
  6. Step 6: Final answer
    x = 1,269.11

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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.