Home / 7,838.19-10,820.52-5,286.60

Finding the Fourth Proportional to 7,838.19, 10,820.52 and 5,286.60

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Solution

The fourth proportional to 7,838.19, 10,820.52 and 5,286.60 is: 7,298.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838.19 : 10,820.52 = 5,286.60 : x
  2. Step 2: Convert to fraction form
    7,838.19/10,820.52 = 5,286.60/x
  3. Step 3: Cross multiply
    7,838.19x = 10,820.52 × 5,286.60
  4. Step 4: Simplify right side
    7,838.19x = 57,203,761.03
  5. Step 5: Solve for x
    x = 57,203,761.03/7,838.19
  6. Step 6: Final answer
    x = 7,298.08

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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.