Home / 2,972.28-4,457.05-1,328.84

Finding the Fourth Proportional to 2,972.28, 4,457.05 and 1,328.84

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Solution

The fourth proportional to 2,972.28, 4,457.05 and 1,328.84 is: 1,992.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.28 : 4,457.05 = 1,328.84 : x
  2. Step 2: Convert to fraction form
    2,972.28/4,457.05 = 1,328.84/x
  3. Step 3: Cross multiply
    2,972.28x = 4,457.05 × 1,328.84
  4. Step 4: Simplify right side
    2,972.28x = 5,922,680.71
  5. Step 5: Solve for x
    x = 5,922,680.71/2,972.28
  6. Step 6: Final answer
    x = 1,992.64

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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.