Home / 2,195.79-3,030.20-1,201.07

Finding the Fourth Proportional to 2,195.79, 3,030.20 and 1,201.07

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Solution

The fourth proportional to 2,195.79, 3,030.20 and 1,201.07 is: 1,657.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.79 : 3,030.20 = 1,201.07 : x
  2. Step 2: Convert to fraction form
    2,195.79/3,030.20 = 1,201.07/x
  3. Step 3: Cross multiply
    2,195.79x = 3,030.20 × 1,201.07
  4. Step 4: Simplify right side
    2,195.79x = 3,639,476.31
  5. Step 5: Solve for x
    x = 3,639,476.31/2,195.79
  6. Step 6: Final answer
    x = 1,657.48

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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.