Home / 2,907.30-4,012.11-1,581.04

Finding the Fourth Proportional to 2,907.30, 4,012.11 and 1,581.04

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Solution

The fourth proportional to 2,907.30, 4,012.11 and 1,581.04 is: 2,181.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.30 : 4,012.11 = 1,581.04 : x
  2. Step 2: Convert to fraction form
    2,907.30/4,012.11 = 1,581.04/x
  3. Step 3: Cross multiply
    2,907.30x = 4,012.11 × 1,581.04
  4. Step 4: Simplify right side
    2,907.30x = 6,343,296.36
  5. Step 5: Solve for x
    x = 6,343,296.36/2,907.30
  6. Step 6: Final answer
    x = 2,181.85

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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.