Home / 7,984.04-11,973.60-2,788.70

Finding the Fourth Proportional to 7,984.04, 11,973.60 and 2,788.70

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Solution

The fourth proportional to 7,984.04, 11,973.60 and 2,788.70 is: 4,182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.04 : 11,973.60 = 2,788.70 : x
  2. Step 2: Convert to fraction form
    7,984.04/11,973.60 = 2,788.70/x
  3. Step 3: Cross multiply
    7,984.04x = 11,973.60 × 2,788.70
  4. Step 4: Simplify right side
    7,984.04x = 33,390,718.45
  5. Step 5: Solve for x
    x = 33,390,718.45/7,984.04
  6. Step 6: Final answer
    x = 4,182.19

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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.