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Finding the Fourth Proportional to 2,992.85, 4,457.65 and 2,836.72

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Solution

The fourth proportional to 2,992.85, 4,457.65 and 2,836.72 is: 4,225.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.85 : 4,457.65 = 2,836.72 : x
  2. Step 2: Convert to fraction form
    2,992.85/4,457.65 = 2,836.72/x
  3. Step 3: Cross multiply
    2,992.85x = 4,457.65 × 2,836.72
  4. Step 4: Simplify right side
    2,992.85x = 12,645,104.91
  5. Step 5: Solve for x
    x = 12,645,104.91/2,992.85
  6. Step 6: Final answer
    x = 4,225.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.