Home / 7,037.50-9,711.75-3,893.89

Finding the Fourth Proportional to 7,037.50, 9,711.75 and 3,893.89

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Solution

The fourth proportional to 7,037.50, 9,711.75 and 3,893.89 is: 5,373.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,037.50 : 9,711.75 = 3,893.89 : x
  2. Step 2: Convert to fraction form
    7,037.50/9,711.75 = 3,893.89/x
  3. Step 3: Cross multiply
    7,037.50x = 9,711.75 × 3,893.89
  4. Step 4: Simplify right side
    7,037.50x = 37,816,486.21
  5. Step 5: Solve for x
    x = 37,816,486.21/7,037.50
  6. Step 6: Final answer
    x = 5,373.57

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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.