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Finding the Fourth Proportional to 5,009.72, 6,916.05 and 3,888.14

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Solution

The fourth proportional to 5,009.72, 6,916.05 and 3,888.14 is: 5,367.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,009.72 : 6,916.05 = 3,888.14 : x
  2. Step 2: Convert to fraction form
    5,009.72/6,916.05 = 3,888.14/x
  3. Step 3: Cross multiply
    5,009.72x = 6,916.05 × 3,888.14
  4. Step 4: Simplify right side
    5,009.72x = 26,890,536.07
  5. Step 5: Solve for x
    x = 26,890,536.07/5,009.72
  6. Step 6: Final answer
    x = 5,367.68

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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.