Home / 3,280.58-4,920.84-1,332.32

Finding the Fourth Proportional to 3,280.58, 4,920.84 and 1,332.32

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Solution

The fourth proportional to 3,280.58, 4,920.84 and 1,332.32 is: 1,998.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.58 : 4,920.84 = 1,332.32 : x
  2. Step 2: Convert to fraction form
    3,280.58/4,920.84 = 1,332.32/x
  3. Step 3: Cross multiply
    3,280.58x = 4,920.84 × 1,332.32
  4. Step 4: Simplify right side
    3,280.58x = 6,556,133.55
  5. Step 5: Solve for x
    x = 6,556,133.55/3,280.58
  6. Step 6: Final answer
    x = 1,998.47

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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.