Home / 2,707.88-3,736.58-1,528.74

Finding the Fourth Proportional to 2,707.88, 3,736.58 and 1,528.74

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Solution

The fourth proportional to 2,707.88, 3,736.58 and 1,528.74 is: 2,109.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,707.88 : 3,736.58 = 1,528.74 : x
  2. Step 2: Convert to fraction form
    2,707.88/3,736.58 = 1,528.74/x
  3. Step 3: Cross multiply
    2,707.88x = 3,736.58 × 1,528.74
  4. Step 4: Simplify right side
    2,707.88x = 5,712,251.67
  5. Step 5: Solve for x
    x = 5,712,251.67/2,707.88
  6. Step 6: Final answer
    x = 2,109.50

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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.