Home / 2,907.38-4,012.17-1,581.08

Finding the Fourth Proportional to 2,907.38, 4,012.17 and 1,581.08

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Solution

The fourth proportional to 2,907.38, 4,012.17 and 1,581.08 is: 2,181.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.38 : 4,012.17 = 1,581.08 : x
  2. Step 2: Convert to fraction form
    2,907.38/4,012.17 = 1,581.08/x
  3. Step 3: Cross multiply
    2,907.38x = 4,012.17 × 1,581.08
  4. Step 4: Simplify right side
    2,907.38x = 6,343,561.74
  5. Step 5: Solve for x
    x = 6,343,561.74/2,907.38
  6. Step 6: Final answer
    x = 2,181.88

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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.