Home / 2,739.06-3,780.09-1,559.88

Finding the Fourth Proportional to 2,739.06, 3,780.09 and 1,559.88

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Solution

The fourth proportional to 2,739.06, 3,780.09 and 1,559.88 is: 2,152.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.06 : 3,780.09 = 1,559.88 : x
  2. Step 2: Convert to fraction form
    2,739.06/3,780.09 = 1,559.88/x
  3. Step 3: Cross multiply
    2,739.06x = 3,780.09 × 1,559.88
  4. Step 4: Simplify right side
    2,739.06x = 5,896,486.79
  5. Step 5: Solve for x
    x = 5,896,486.79/2,739.06
  6. Step 6: Final answer
    x = 2,152.74

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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.