Home / 2,195.68-3,030.30-1,356.25

Finding the Fourth Proportional to 2,195.68, 3,030.30 and 1,356.25

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Solution

The fourth proportional to 2,195.68, 3,030.30 and 1,356.25 is: 1,871.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.68 : 3,030.30 = 1,356.25 : x
  2. Step 2: Convert to fraction form
    2,195.68/3,030.30 = 1,356.25/x
  3. Step 3: Cross multiply
    2,195.68x = 3,030.30 × 1,356.25
  4. Step 4: Simplify right side
    2,195.68x = 4,109,844.38
  5. Step 5: Solve for x
    x = 4,109,844.38/2,195.68
  6. Step 6: Final answer
    x = 1,871.79

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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.