Home / 5,388.84-7,434.09-3,150.81

Finding the Fourth Proportional to 5,388.84, 7,434.09 and 3,150.81

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Solution

The fourth proportional to 5,388.84, 7,434.09 and 3,150.81 is: 4,346.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.84 : 7,434.09 = 3,150.81 : x
  2. Step 2: Convert to fraction form
    5,388.84/7,434.09 = 3,150.81/x
  3. Step 3: Cross multiply
    5,388.84x = 7,434.09 × 3,150.81
  4. Step 4: Simplify right side
    5,388.84x = 23,423,405.11
  5. Step 5: Solve for x
    x = 23,423,405.11/5,388.84
  6. Step 6: Final answer
    x = 4,346.65

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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.