Home / 2,288.85-3,156.63-1,491.88

Finding the Fourth Proportional to 2,288.85, 3,156.63 and 1,491.88

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Solution

The fourth proportional to 2,288.85, 3,156.63 and 1,491.88 is: 2,057.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,288.85 : 3,156.63 = 1,491.88 : x
  2. Step 2: Convert to fraction form
    2,288.85/3,156.63 = 1,491.88/x
  3. Step 3: Cross multiply
    2,288.85x = 3,156.63 × 1,491.88
  4. Step 4: Simplify right side
    2,288.85x = 4,709,313.16
  5. Step 5: Solve for x
    x = 4,709,313.16/2,288.85
  6. Step 6: Final answer
    x = 2,057.50

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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.