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Finding the Fourth Proportional to 1,807.02, 2,491.92 and 1,098.97

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Solution

The fourth proportional to 1,807.02, 2,491.92 and 1,098.97 is: 1,515.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,807.02 : 2,491.92 = 1,098.97 : x
  2. Step 2: Convert to fraction form
    1,807.02/2,491.92 = 1,098.97/x
  3. Step 3: Cross multiply
    1,807.02x = 2,491.92 × 1,098.97
  4. Step 4: Simplify right side
    1,807.02x = 2,738,539.09
  5. Step 5: Solve for x
    x = 2,738,539.09/1,807.02
  6. Step 6: Final answer
    x = 1,515.50

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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.