Home / 7,021.14-9,688.90-3,877.26

Finding the Fourth Proportional to 7,021.14, 9,688.90 and 3,877.26

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Solution

The fourth proportional to 7,021.14, 9,688.90 and 3,877.26 is: 5,350.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.14 : 9,688.90 = 3,877.26 : x
  2. Step 2: Convert to fraction form
    7,021.14/9,688.90 = 3,877.26/x
  3. Step 3: Cross multiply
    7,021.14x = 9,688.90 × 3,877.26
  4. Step 4: Simplify right side
    7,021.14x = 37,566,384.41
  5. Step 5: Solve for x
    x = 37,566,384.41/7,021.14
  6. Step 6: Final answer
    x = 5,350.47

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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.