Home / 2,972.10-4,457.77-1,215.88

Finding the Fourth Proportional to 2,972.10, 4,457.77 and 1,215.88

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Solution

The fourth proportional to 2,972.10, 4,457.77 and 1,215.88 is: 1,823.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.10 : 4,457.77 = 1,215.88 : x
  2. Step 2: Convert to fraction form
    2,972.10/4,457.77 = 1,215.88/x
  3. Step 3: Cross multiply
    2,972.10x = 4,457.77 × 1,215.88
  4. Step 4: Simplify right side
    2,972.10x = 5,420,113.39
  5. Step 5: Solve for x
    x = 5,420,113.39/2,972.10
  6. Step 6: Final answer
    x = 1,823.66

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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.