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Finding the Fourth Proportional to 1,838.50, 2,758.11 and 606.01

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Solution

The fourth proportional to 1,838.50, 2,758.11 and 606.01 is: 909.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838.50 : 2,758.11 = 606.01 : x
  2. Step 2: Convert to fraction form
    1,838.50/2,758.11 = 606.01/x
  3. Step 3: Cross multiply
    1,838.50x = 2,758.11 × 606.01
  4. Step 4: Simplify right side
    1,838.50x = 1,671,442.24
  5. Step 5: Solve for x
    x = 1,671,442.24/1,838.50
  6. Step 6: Final answer
    x = 909.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.