Home / 5,161.40-7,124.41-3,036.81

Finding the Fourth Proportional to 5,161.40, 7,124.41 and 3,036.81

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Solution

The fourth proportional to 5,161.40, 7,124.41 and 3,036.81 is: 4,191.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.40 : 7,124.41 = 3,036.81 : x
  2. Step 2: Convert to fraction form
    5,161.40/7,124.41 = 3,036.81/x
  3. Step 3: Cross multiply
    5,161.40x = 7,124.41 × 3,036.81
  4. Step 4: Simplify right side
    5,161.40x = 21,635,479.53
  5. Step 5: Solve for x
    x = 21,635,479.53/5,161.40
  6. Step 6: Final answer
    x = 4,191.79

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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.