Home / 5,631.69-7,771.01-3,240.57

Finding the Fourth Proportional to 5,631.69, 7,771.01 and 3,240.57

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Solution

The fourth proportional to 5,631.69, 7,771.01 and 3,240.57 is: 4,471.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.69 : 7,771.01 = 3,240.57 : x
  2. Step 2: Convert to fraction form
    5,631.69/7,771.01 = 3,240.57/x
  3. Step 3: Cross multiply
    5,631.69x = 7,771.01 × 3,240.57
  4. Step 4: Simplify right side
    5,631.69x = 25,182,501.88
  5. Step 5: Solve for x
    x = 25,182,501.88/5,631.69
  6. Step 6: Final answer
    x = 4,471.57

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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.