Home / 4,647.48-6,981.21-2,917.32

Finding the Fourth Proportional to 4,647.48, 6,981.21 and 2,917.32

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Solution

The fourth proportional to 4,647.48, 6,981.21 and 2,917.32 is: 4,382.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,647.48 : 6,981.21 = 2,917.32 : x
  2. Step 2: Convert to fraction form
    4,647.48/6,981.21 = 2,917.32/x
  3. Step 3: Cross multiply
    4,647.48x = 6,981.21 × 2,917.32
  4. Step 4: Simplify right side
    4,647.48x = 20,366,423.56
  5. Step 5: Solve for x
    x = 20,366,423.56/4,647.48
  6. Step 6: Final answer
    x = 4,382.25

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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.