Home / 2,624.90-3,935.78-1,781.63

Finding the Fourth Proportional to 2,624.90, 3,935.78 and 1,781.63

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Solution

The fourth proportional to 2,624.90, 3,935.78 and 1,781.63 is: 2,671.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,624.90 : 3,935.78 = 1,781.63 : x
  2. Step 2: Convert to fraction form
    2,624.90/3,935.78 = 1,781.63/x
  3. Step 3: Cross multiply
    2,624.90x = 3,935.78 × 1,781.63
  4. Step 4: Simplify right side
    2,624.90x = 7,012,104.65
  5. Step 5: Solve for x
    x = 7,012,104.65/2,624.90
  6. Step 6: Final answer
    x = 2,671.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.