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Finding the Fourth Proportional to 3,367.68, 4,648.32 and 1,970.88

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Solution

The fourth proportional to 3,367.68, 4,648.32 and 1,970.88 is: 2,720.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,367.68 : 4,648.32 = 1,970.88 : x
  2. Step 2: Convert to fraction form
    3,367.68/4,648.32 = 1,970.88/x
  3. Step 3: Cross multiply
    3,367.68x = 4,648.32 × 1,970.88
  4. Step 4: Simplify right side
    3,367.68x = 9,161,280.92
  5. Step 5: Solve for x
    x = 9,161,280.92/3,367.68
  6. Step 6: Final answer
    x = 2,720.35

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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.