Home / 4,979.60-7,467.62-1,647.24

Finding the Fourth Proportional to 4,979.60, 7,467.62 and 1,647.24

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Solution

The fourth proportional to 4,979.60, 7,467.62 and 1,647.24 is: 2,470.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.60 : 7,467.62 = 1,647.24 : x
  2. Step 2: Convert to fraction form
    4,979.60/7,467.62 = 1,647.24/x
  3. Step 3: Cross multiply
    4,979.60x = 7,467.62 × 1,647.24
  4. Step 4: Simplify right side
    4,979.60x = 12,300,926.13
  5. Step 5: Solve for x
    x = 12,300,926.13/4,979.60
  6. Step 6: Final answer
    x = 2,470.26

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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.