Home / 5,133.32-7,084.12-3,143.84

Finding the Fourth Proportional to 5,133.32, 7,084.12 and 3,143.84

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Solution

The fourth proportional to 5,133.32, 7,084.12 and 3,143.84 is: 4,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.32 : 7,084.12 = 3,143.84 : x
  2. Step 2: Convert to fraction form
    5,133.32/7,084.12 = 3,143.84/x
  3. Step 3: Cross multiply
    5,133.32x = 7,084.12 × 3,143.84
  4. Step 4: Simplify right side
    5,133.32x = 22,271,339.82
  5. Step 5: Solve for x
    x = 22,271,339.82/5,133.32
  6. Step 6: Final answer
    x = 4,338.58

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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.