Home / 2,707.78-3,736.75-1,528.85

Finding the Fourth Proportional to 2,707.78, 3,736.75 and 1,528.85

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Solution

The fourth proportional to 2,707.78, 3,736.75 and 1,528.85 is: 2,109.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,707.78 : 3,736.75 = 1,528.85 : x
  2. Step 2: Convert to fraction form
    2,707.78/3,736.75 = 1,528.85/x
  3. Step 3: Cross multiply
    2,707.78x = 3,736.75 × 1,528.85
  4. Step 4: Simplify right side
    2,707.78x = 5,712,921.66
  5. Step 5: Solve for x
    x = 5,712,921.66/2,707.78
  6. Step 6: Final answer
    x = 2,109.82

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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.