Home / 4,704.08-6,491.76-2,840

Finding the Fourth Proportional to 4,704.08, 6,491.76 and 2,840

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Solution

The fourth proportional to 4,704.08, 6,491.76 and 2,840 is: 3,919.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,704.08 : 6,491.76 = 2,840 : x
  2. Step 2: Convert to fraction form
    4,704.08/6,491.76 = 2,840/x
  3. Step 3: Cross multiply
    4,704.08x = 6,491.76 × 2,840
  4. Step 4: Simplify right side
    4,704.08x = 18,436,598.40
  5. Step 5: Solve for x
    x = 18,436,598.40/4,704.08
  6. Step 6: Final answer
    x = 3,919.28

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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.