Home / 7,188.60-9,919.35-4,044.18

Finding the Fourth Proportional to 7,188.60, 9,919.35 and 4,044.18

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Solution

The fourth proportional to 7,188.60, 9,919.35 and 4,044.18 is: 5,580.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188.60 : 9,919.35 = 4,044.18 : x
  2. Step 2: Convert to fraction form
    7,188.60/9,919.35 = 4,044.18/x
  3. Step 3: Cross multiply
    7,188.60x = 9,919.35 × 4,044.18
  4. Step 4: Simplify right side
    7,188.60x = 40,115,636.88
  5. Step 5: Solve for x
    x = 40,115,636.88/7,188.60
  6. Step 6: Final answer
    x = 5,580.45

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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.