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Finding the Fourth Proportional to 2,920.53, 4,357.02 and 2,682.66

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Solution

The fourth proportional to 2,920.53, 4,357.02 and 2,682.66 is: 4,002.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.53 : 4,357.02 = 2,682.66 : x
  2. Step 2: Convert to fraction form
    2,920.53/4,357.02 = 2,682.66/x
  3. Step 3: Cross multiply
    2,920.53x = 4,357.02 × 2,682.66
  4. Step 4: Simplify right side
    2,920.53x = 11,688,403.27
  5. Step 5: Solve for x
    x = 11,688,403.27/2,920.53
  6. Step 6: Final answer
    x = 4,002.15

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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.