Home / 3,280.79-4,921.08-1,332.95

Finding the Fourth Proportional to 3,280.79, 4,921.08 and 1,332.95

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Solution

The fourth proportional to 3,280.79, 4,921.08 and 1,332.95 is: 1,999.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.79 : 4,921.08 = 1,332.95 : x
  2. Step 2: Convert to fraction form
    3,280.79/4,921.08 = 1,332.95/x
  3. Step 3: Cross multiply
    3,280.79x = 4,921.08 × 1,332.95
  4. Step 4: Simplify right side
    3,280.79x = 6,559,528.98
  5. Step 5: Solve for x
    x = 6,559,528.98/3,280.79
  6. Step 6: Final answer
    x = 1,999.38

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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.