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Finding the Fourth Proportional to 2,846.60, 4,269.90 and 2,803.40

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Solution

The fourth proportional to 2,846.60, 4,269.90 and 2,803.40 is: 4,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,846.60 : 4,269.90 = 2,803.40 : x
  2. Step 2: Convert to fraction form
    2,846.60/4,269.90 = 2,803.40/x
  3. Step 3: Cross multiply
    2,846.60x = 4,269.90 × 2,803.40
  4. Step 4: Simplify right side
    2,846.60x = 11,970,237.66
  5. Step 5: Solve for x
    x = 11,970,237.66/2,846.60
  6. Step 6: Final answer
    x = 4,205.10

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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.