Home / 5,143.05-7,097.36-2,785.16

Finding the Fourth Proportional to 5,143.05, 7,097.36 and 2,785.16

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Solution

The fourth proportional to 5,143.05, 7,097.36 and 2,785.16 is: 3,843.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.05 : 7,097.36 = 2,785.16 : x
  2. Step 2: Convert to fraction form
    5,143.05/7,097.36 = 2,785.16/x
  3. Step 3: Cross multiply
    5,143.05x = 7,097.36 × 2,785.16
  4. Step 4: Simplify right side
    5,143.05x = 19,767,287.00
  5. Step 5: Solve for x
    x = 19,767,287.00/5,143.05
  6. Step 6: Final answer
    x = 3,843.50

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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.