Home / 4,721.41-6,515.87-3,125.31

Finding the Fourth Proportional to 4,721.41, 6,515.87 and 3,125.31

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Solution

The fourth proportional to 4,721.41, 6,515.87 and 3,125.31 is: 4,313.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.41 : 6,515.87 = 3,125.31 : x
  2. Step 2: Convert to fraction form
    4,721.41/6,515.87 = 3,125.31/x
  3. Step 3: Cross multiply
    4,721.41x = 6,515.87 × 3,125.31
  4. Step 4: Simplify right side
    4,721.41x = 20,364,109.89
  5. Step 5: Solve for x
    x = 20,364,109.89/4,721.41
  6. Step 6: Final answer
    x = 4,313.14

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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.