Home / 4,903.20-7,357.68-1,981.08

Finding the Fourth Proportional to 4,903.20, 7,357.68 and 1,981.08

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Solution

The fourth proportional to 4,903.20, 7,357.68 and 1,981.08 is: 2,972.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.20 : 7,357.68 = 1,981.08 : x
  2. Step 2: Convert to fraction form
    4,903.20/7,357.68 = 1,981.08/x
  3. Step 3: Cross multiply
    4,903.20x = 7,357.68 × 1,981.08
  4. Step 4: Simplify right side
    4,903.20x = 14,576,152.69
  5. Step 5: Solve for x
    x = 14,576,152.69/4,903.20
  6. Step 6: Final answer
    x = 2,972.78

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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.