Home / 4,721.28-6,515.68-3,152

Finding the Fourth Proportional to 4,721.28, 6,515.68 and 3,152

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Solution

The fourth proportional to 4,721.28, 6,515.68 and 3,152 is: 4,349.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.28 : 6,515.68 = 3,152 : x
  2. Step 2: Convert to fraction form
    4,721.28/6,515.68 = 3,152/x
  3. Step 3: Cross multiply
    4,721.28x = 6,515.68 × 3,152
  4. Step 4: Simplify right side
    4,721.28x = 20,537,423.36
  5. Step 5: Solve for x
    x = 20,537,423.36/4,721.28
  6. Step 6: Final answer
    x = 4,349.97

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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.