Home / 4,778.16-7,166.70-1,491.36

Finding the Fourth Proportional to 4,778.16, 7,166.70 and 1,491.36

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Solution

The fourth proportional to 4,778.16, 7,166.70 and 1,491.36 is: 2,236.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.16 : 7,166.70 = 1,491.36 : x
  2. Step 2: Convert to fraction form
    4,778.16/7,166.70 = 1,491.36/x
  3. Step 3: Cross multiply
    4,778.16x = 7,166.70 × 1,491.36
  4. Step 4: Simplify right side
    4,778.16x = 10,688,129.71
  5. Step 5: Solve for x
    x = 10,688,129.71/4,778.16
  6. Step 6: Final answer
    x = 2,236.87

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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.