Home / 1,631.79-2,248.65-1,611.36

Finding the Fourth Proportional to 1,631.79, 2,248.65 and 1,611.36

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Solution

The fourth proportional to 1,631.79, 2,248.65 and 1,611.36 is: 2,220.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.79 : 2,248.65 = 1,611.36 : x
  2. Step 2: Convert to fraction form
    1,631.79/2,248.65 = 1,611.36/x
  3. Step 3: Cross multiply
    1,631.79x = 2,248.65 × 1,611.36
  4. Step 4: Simplify right side
    1,631.79x = 3,623,384.66
  5. Step 5: Solve for x
    x = 3,623,384.66/1,631.79
  6. Step 6: Final answer
    x = 2,220.50

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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.