Home / 2,122.20-2,927.34-1,491.62

Finding the Fourth Proportional to 2,122.20, 2,927.34 and 1,491.62

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Solution

The fourth proportional to 2,122.20, 2,927.34 and 1,491.62 is: 2,057.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.20 : 2,927.34 = 1,491.62 : x
  2. Step 2: Convert to fraction form
    2,122.20/2,927.34 = 1,491.62/x
  3. Step 3: Cross multiply
    2,122.20x = 2,927.34 × 1,491.62
  4. Step 4: Simplify right side
    2,122.20x = 4,366,464.25
  5. Step 5: Solve for x
    x = 4,366,464.25/2,122.20
  6. Step 6: Final answer
    x = 2,057.52

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1.5x scale

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.