Home / 3,830.74-5,285.78-2,259.13

Finding the Fourth Proportional to 3,830.74, 5,285.78 and 2,259.13

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Solution

The fourth proportional to 3,830.74, 5,285.78 and 2,259.13 is: 3,117.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.74 : 5,285.78 = 2,259.13 : x
  2. Step 2: Convert to fraction form
    3,830.74/5,285.78 = 2,259.13/x
  3. Step 3: Cross multiply
    3,830.74x = 5,285.78 × 2,259.13
  4. Step 4: Simplify right side
    3,830.74x = 11,941,264.17
  5. Step 5: Solve for x
    x = 11,941,264.17/3,830.74
  6. Step 6: Final answer
    x = 3,117.22

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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.