Home / 3,280.39-4,917.48-1,307.24

Finding the Fourth Proportional to 3,280.39, 4,917.48 and 1,307.24

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Solution

The fourth proportional to 3,280.39, 4,917.48 and 1,307.24 is: 1,959.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.39 : 4,917.48 = 1,307.24 : x
  2. Step 2: Convert to fraction form
    3,280.39/4,917.48 = 1,307.24/x
  3. Step 3: Cross multiply
    3,280.39x = 4,917.48 × 1,307.24
  4. Step 4: Simplify right side
    3,280.39x = 6,428,301.97
  5. Step 5: Solve for x
    x = 6,428,301.97/3,280.39
  6. Step 6: Final answer
    x = 1,959.62

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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.