Home / 2,907.43-4,012.25-1,581.13

Finding the Fourth Proportional to 2,907.43, 4,012.25 and 1,581.13

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Solution

The fourth proportional to 2,907.43, 4,012.25 and 1,581.13 is: 2,181.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.43 : 4,012.25 = 1,581.13 : x
  2. Step 2: Convert to fraction form
    2,907.43/4,012.25 = 1,581.13/x
  3. Step 3: Cross multiply
    2,907.43x = 4,012.25 × 1,581.13
  4. Step 4: Simplify right side
    2,907.43x = 6,343,885.95
  5. Step 5: Solve for x
    x = 6,343,885.95/2,907.43
  6. Step 6: Final answer
    x = 2,181.96

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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.