Home / 3,098.45-4,275.89-1,772.08

Finding the Fourth Proportional to 3,098.45, 4,275.89 and 1,772.08

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Solution

The fourth proportional to 3,098.45, 4,275.89 and 1,772.08 is: 2,445.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.45 : 4,275.89 = 1,772.08 : x
  2. Step 2: Convert to fraction form
    3,098.45/4,275.89 = 1,772.08/x
  3. Step 3: Cross multiply
    3,098.45x = 4,275.89 × 1,772.08
  4. Step 4: Simplify right side
    3,098.45x = 7,577,206.25
  5. Step 5: Solve for x
    x = 7,577,206.25/3,098.45
  6. Step 6: Final answer
    x = 2,445.48

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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.