Home / 5,143.08-7,097.40-2,785.18

Finding the Fourth Proportional to 5,143.08, 7,097.40 and 2,785.18

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Solution

The fourth proportional to 5,143.08, 7,097.40 and 2,785.18 is: 3,843.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.08 : 7,097.40 = 2,785.18 : x
  2. Step 2: Convert to fraction form
    5,143.08/7,097.40 = 2,785.18/x
  3. Step 3: Cross multiply
    5,143.08x = 7,097.40 × 2,785.18
  4. Step 4: Simplify right side
    5,143.08x = 19,767,536.53
  5. Step 5: Solve for x
    x = 19,767,536.53/5,143.08
  6. Step 6: Final answer
    x = 3,843.52

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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.