Home / 1,623.50-2,240.78-1,033.90

Finding the Fourth Proportional to 1,623.50, 2,240.78 and 1,033.90

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Solution

The fourth proportional to 1,623.50, 2,240.78 and 1,033.90 is: 1,427.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.50 : 2,240.78 = 1,033.90 : x
  2. Step 2: Convert to fraction form
    1,623.50/2,240.78 = 1,033.90/x
  3. Step 3: Cross multiply
    1,623.50x = 2,240.78 × 1,033.90
  4. Step 4: Simplify right side
    1,623.50x = 2,316,742.44
  5. Step 5: Solve for x
    x = 2,316,742.44/1,623.50
  6. Step 6: Final answer
    x = 1,427.00

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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.