Home / 3,280.88-4,526.32-2,162.40

Finding the Fourth Proportional to 3,280.88, 4,526.32 and 2,162.40

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Solution

The fourth proportional to 3,280.88, 4,526.32 and 2,162.40 is: 2,983.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.88 : 4,526.32 = 2,162.40 : x
  2. Step 2: Convert to fraction form
    3,280.88/4,526.32 = 2,162.40/x
  3. Step 3: Cross multiply
    3,280.88x = 4,526.32 × 2,162.40
  4. Step 4: Simplify right side
    3,280.88x = 9,787,714.37
  5. Step 5: Solve for x
    x = 9,787,714.37/3,280.88
  6. Step 6: Final answer
    x = 2,983.26

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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.