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Finding the Fourth Proportional to 7,898.72, 10,900.02 and 4,361.85

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Solution

The fourth proportional to 7,898.72, 10,900.02 and 4,361.85 is: 6,019.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.72 : 10,900.02 = 4,361.85 : x
  2. Step 2: Convert to fraction form
    7,898.72/10,900.02 = 4,361.85/x
  3. Step 3: Cross multiply
    7,898.72x = 10,900.02 × 4,361.85
  4. Step 4: Simplify right side
    7,898.72x = 47,544,244.06
  5. Step 5: Solve for x
    x = 47,544,244.06/7,898.72
  6. Step 6: Final answer
    x = 6,019.24

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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.