Home / 2,973.92-4,457.66-1,328.20

Finding the Fourth Proportional to 2,973.92, 4,457.66 and 1,328.20

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Solution

The fourth proportional to 2,973.92, 4,457.66 and 1,328.20 is: 1,990.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,973.92 : 4,457.66 = 1,328.20 : x
  2. Step 2: Convert to fraction form
    2,973.92/4,457.66 = 1,328.20/x
  3. Step 3: Cross multiply
    2,973.92x = 4,457.66 × 1,328.20
  4. Step 4: Simplify right side
    2,973.92x = 5,920,646.23
  5. Step 5: Solve for x
    x = 5,920,646.23/2,973.92
  6. Step 6: Final answer
    x = 1,990.86

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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.