Home / 3,830.74-5,285.78-2,259.14

Finding the Fourth Proportional to 3,830.74, 5,285.78 and 2,259.14

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Solution

The fourth proportional to 3,830.74, 5,285.78 and 2,259.14 is: 3,117.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.74 : 5,285.78 = 2,259.14 : x
  2. Step 2: Convert to fraction form
    3,830.74/5,285.78 = 2,259.14/x
  3. Step 3: Cross multiply
    3,830.74x = 5,285.78 × 2,259.14
  4. Step 4: Simplify right side
    3,830.74x = 11,941,305.73
  5. Step 5: Solve for x
    x = 11,941,305.73/3,830.74
  6. Step 6: Final answer
    x = 3,117.24

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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.