Home / 2,743.70-3,786.58-1,564.76

Finding the Fourth Proportional to 2,743.70, 3,786.58 and 1,564.76

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Solution

The fourth proportional to 2,743.70, 3,786.58 and 1,564.76 is: 2,159.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.70 : 3,786.58 = 1,564.76 : x
  2. Step 2: Convert to fraction form
    2,743.70/3,786.58 = 1,564.76/x
  3. Step 3: Cross multiply
    2,743.70x = 3,786.58 × 1,564.76
  4. Step 4: Simplify right side
    2,743.70x = 5,925,088.92
  5. Step 5: Solve for x
    x = 5,925,088.92/2,743.70
  6. Step 6: Final answer
    x = 2,159.53

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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.