Home / 4,622.30-6,931.16-2,647.64

Finding the Fourth Proportional to 4,622.30, 6,931.16 and 2,647.64

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Solution

The fourth proportional to 4,622.30, 6,931.16 and 2,647.64 is: 3,970.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,622.30 : 6,931.16 = 2,647.64 : x
  2. Step 2: Convert to fraction form
    4,622.30/6,931.16 = 2,647.64/x
  3. Step 3: Cross multiply
    4,622.30x = 6,931.16 × 2,647.64
  4. Step 4: Simplify right side
    4,622.30x = 18,351,216.46
  5. Step 5: Solve for x
    x = 18,351,216.46/4,622.30
  6. Step 6: Final answer
    x = 3,970.15

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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.