Home / 2,742.84-3,785.18-1,623.76

Finding the Fourth Proportional to 2,742.84, 3,785.18 and 1,623.76

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Solution

The fourth proportional to 2,742.84, 3,785.18 and 1,623.76 is: 2,240.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.84 : 3,785.18 = 1,623.76 : x
  2. Step 2: Convert to fraction form
    2,742.84/3,785.18 = 1,623.76/x
  3. Step 3: Cross multiply
    2,742.84x = 3,785.18 × 1,623.76
  4. Step 4: Simplify right side
    2,742.84x = 6,146,206.30
  5. Step 5: Solve for x
    x = 6,146,206.30/2,742.84
  6. Step 6: Final answer
    x = 2,240.82

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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.