Home / 2,809.32-4,213.12-1,077.52

Finding the Fourth Proportional to 2,809.32, 4,213.12 and 1,077.52

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Solution

The fourth proportional to 2,809.32, 4,213.12 and 1,077.52 is: 1,615.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.32 : 4,213.12 = 1,077.52 : x
  2. Step 2: Convert to fraction form
    2,809.32/4,213.12 = 1,077.52/x
  3. Step 3: Cross multiply
    2,809.32x = 4,213.12 × 1,077.52
  4. Step 4: Simplify right side
    2,809.32x = 4,539,721.06
  5. Step 5: Solve for x
    x = 4,539,721.06/2,809.32
  6. Step 6: Final answer
    x = 1,615.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.