Home / 1,631.99-2,252.45-1,282.07

Finding the Fourth Proportional to 1,631.99, 2,252.45 and 1,282.07

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Solution

The fourth proportional to 1,631.99, 2,252.45 and 1,282.07 is: 1,769.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.99 : 2,252.45 = 1,282.07 : x
  2. Step 2: Convert to fraction form
    1,631.99/2,252.45 = 1,282.07/x
  3. Step 3: Cross multiply
    1,631.99x = 2,252.45 × 1,282.07
  4. Step 4: Simplify right side
    1,631.99x = 2,887,807.41
  5. Step 5: Solve for x
    x = 2,887,807.41/1,631.99
  6. Step 6: Final answer
    x = 1,769.50

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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.