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Finding the Fourth Proportional to 4,901.54, 7,353.68 and 1,981.89

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Solution

The fourth proportional to 4,901.54, 7,353.68 and 1,981.89 is: 2,973.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,901.54 : 7,353.68 = 1,981.89 : x
  2. Step 2: Convert to fraction form
    4,901.54/7,353.68 = 1,981.89/x
  3. Step 3: Cross multiply
    4,901.54x = 7,353.68 × 1,981.89
  4. Step 4: Simplify right side
    4,901.54x = 14,574,174.95
  5. Step 5: Solve for x
    x = 14,574,174.95/4,901.54
  6. Step 6: Final answer
    x = 2,973.39

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1.5x scale

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.