Home / 4,903.51-7,355.25-1,981.78

Finding the Fourth Proportional to 4,903.51, 7,355.25 and 1,981.78

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Solution

The fourth proportional to 4,903.51, 7,355.25 and 1,981.78 is: 2,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.51 : 7,355.25 = 1,981.78 : x
  2. Step 2: Convert to fraction form
    4,903.51/7,355.25 = 1,981.78/x
  3. Step 3: Cross multiply
    4,903.51x = 7,355.25 × 1,981.78
  4. Step 4: Simplify right side
    4,903.51x = 14,576,487.35
  5. Step 5: Solve for x
    x = 14,576,487.35/4,903.51
  6. Step 6: Final answer
    x = 2,972.66

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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.