Home / 3,308.19-4,564.45-1,980.95

Finding the Fourth Proportional to 3,308.19, 4,564.45 and 1,980.95

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Solution

The fourth proportional to 3,308.19, 4,564.45 and 1,980.95 is: 2,733.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.19 : 4,564.45 = 1,980.95 : x
  2. Step 2: Convert to fraction form
    3,308.19/4,564.45 = 1,980.95/x
  3. Step 3: Cross multiply
    3,308.19x = 4,564.45 × 1,980.95
  4. Step 4: Simplify right side
    3,308.19x = 9,041,947.23
  5. Step 5: Solve for x
    x = 9,041,947.23/3,308.19
  6. Step 6: Final answer
    x = 2,733.20

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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.