Home / 5,284.60-7,908.18-3,894.64

Finding the Fourth Proportional to 5,284.60, 7,908.18 and 3,894.64

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Solution

The fourth proportional to 5,284.60, 7,908.18 and 3,894.64 is: 5,828.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,284.60 : 7,908.18 = 3,894.64 : x
  2. Step 2: Convert to fraction form
    5,284.60/7,908.18 = 3,894.64/x
  3. Step 3: Cross multiply
    5,284.60x = 7,908.18 × 3,894.64
  4. Step 4: Simplify right side
    5,284.60x = 30,799,514.16
  5. Step 5: Solve for x
    x = 30,799,514.16/5,284.60
  6. Step 6: Final answer
    x = 5,828.16

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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.