Home / 1,621.45-2,236.41-1,061.02

Finding the Fourth Proportional to 1,621.45, 2,236.41 and 1,061.02

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Solution

The fourth proportional to 1,621.45, 2,236.41 and 1,061.02 is: 1,463.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.45 : 2,236.41 = 1,061.02 : x
  2. Step 2: Convert to fraction form
    1,621.45/2,236.41 = 1,061.02/x
  3. Step 3: Cross multiply
    1,621.45x = 2,236.41 × 1,061.02
  4. Step 4: Simplify right side
    1,621.45x = 2,372,875.74
  5. Step 5: Solve for x
    x = 2,372,875.74/1,621.45
  6. Step 6: Final answer
    x = 1,463.43

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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.