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Finding the Fourth Proportional to 5,012.90, 6,917.70 and 2,774.65

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Solution

The fourth proportional to 5,012.90, 6,917.70 and 2,774.65 is: 3,828.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,012.90 : 6,917.70 = 2,774.65 : x
  2. Step 2: Convert to fraction form
    5,012.90/6,917.70 = 2,774.65/x
  3. Step 3: Cross multiply
    5,012.90x = 6,917.70 × 2,774.65
  4. Step 4: Simplify right side
    5,012.90x = 19,194,196.31
  5. Step 5: Solve for x
    x = 19,194,196.31/5,012.90
  6. Step 6: Final answer
    x = 3,828.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.