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Finding the Fourth Proportional to 1,803.53, 2,490.01 and 1,472.74

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Solution

The fourth proportional to 1,803.53, 2,490.01 and 1,472.74 is: 2,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803.53 : 2,490.01 = 1,472.74 : x
  2. Step 2: Convert to fraction form
    1,803.53/2,490.01 = 1,472.74/x
  3. Step 3: Cross multiply
    1,803.53x = 2,490.01 × 1,472.74
  4. Step 4: Simplify right side
    1,803.53x = 3,667,127.42
  5. Step 5: Solve for x
    x = 3,667,127.42/1,803.53
  6. Step 6: Final answer
    x = 2,033.30

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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.