Home / 5,211.50-7,815.29-1,700.69

Finding the Fourth Proportional to 5,211.50, 7,815.29 and 1,700.69

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Solution

The fourth proportional to 5,211.50, 7,815.29 and 1,700.69 is: 2,550.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.50 : 7,815.29 = 1,700.69 : x
  2. Step 2: Convert to fraction form
    5,211.50/7,815.29 = 1,700.69/x
  3. Step 3: Cross multiply
    5,211.50x = 7,815.29 × 1,700.69
  4. Step 4: Simplify right side
    5,211.50x = 13,291,337.97
  5. Step 5: Solve for x
    x = 13,291,337.97/5,211.50
  6. Step 6: Final answer
    x = 2,550.39

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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.