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Finding the Fourth Proportional to 5,011.89, 6,916.38 and 2,803.89

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Solution

The fourth proportional to 5,011.89, 6,916.38 and 2,803.89 is: 3,869.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,011.89 : 6,916.38 = 2,803.89 : x
  2. Step 2: Convert to fraction form
    5,011.89/6,916.38 = 2,803.89/x
  3. Step 3: Cross multiply
    5,011.89x = 6,916.38 × 2,803.89
  4. Step 4: Simplify right side
    5,011.89x = 19,392,768.72
  5. Step 5: Solve for x
    x = 19,392,768.72/5,011.89
  6. Step 6: Final answer
    x = 3,869.35

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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.