Home / 4,331.48-6,491.75-2,139.62

Finding the Fourth Proportional to 4,331.48, 6,491.75 and 2,139.62

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Solution

The fourth proportional to 4,331.48, 6,491.75 and 2,139.62 is: 3,206.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,331.48 : 6,491.75 = 2,139.62 : x
  2. Step 2: Convert to fraction form
    4,331.48/6,491.75 = 2,139.62/x
  3. Step 3: Cross multiply
    4,331.48x = 6,491.75 × 2,139.62
  4. Step 4: Simplify right side
    4,331.48x = 13,889,834.98
  5. Step 5: Solve for x
    x = 13,889,834.98/4,331.48
  6. Step 6: Final answer
    x = 3,206.72

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1.5x scale

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.