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Finding the Fourth Proportional to 5,012.98, 6,916.86 and 3,817.72

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Solution

The fourth proportional to 5,012.98, 6,916.86 and 3,817.72 is: 5,267.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,012.98 : 6,916.86 = 3,817.72 : x
  2. Step 2: Convert to fraction form
    5,012.98/6,916.86 = 3,817.72/x
  3. Step 3: Cross multiply
    5,012.98x = 6,916.86 × 3,817.72
  4. Step 4: Simplify right side
    5,012.98x = 26,406,615.67
  5. Step 5: Solve for x
    x = 26,406,615.67/5,012.98
  6. Step 6: Final answer
    x = 5,267.65

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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.