Home / 5,099.18-7,645.73-1,810.78

Finding the Fourth Proportional to 5,099.18, 7,645.73 and 1,810.78

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Solution

The fourth proportional to 5,099.18, 7,645.73 and 1,810.78 is: 2,715.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.18 : 7,645.73 = 1,810.78 : x
  2. Step 2: Convert to fraction form
    5,099.18/7,645.73 = 1,810.78/x
  3. Step 3: Cross multiply
    5,099.18x = 7,645.73 × 1,810.78
  4. Step 4: Simplify right side
    5,099.18x = 13,844,706.80
  5. Step 5: Solve for x
    x = 13,844,706.80/5,099.18
  6. Step 6: Final answer
    x = 2,715.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.