Home / 7,419.04-11,128.52-1,947.04

Finding the Fourth Proportional to 7,419.04, 11,128.52 and 1,947.04

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Solution

The fourth proportional to 7,419.04, 11,128.52 and 1,947.04 is: 2,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.04 : 11,128.52 = 1,947.04 : x
  2. Step 2: Convert to fraction form
    7,419.04/11,128.52 = 1,947.04/x
  3. Step 3: Cross multiply
    7,419.04x = 11,128.52 × 1,947.04
  4. Step 4: Simplify right side
    7,419.04x = 21,667,673.58
  5. Step 5: Solve for x
    x = 21,667,673.58/7,419.04
  6. Step 6: Final answer
    x = 2,920.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.