Home / 5,681.72-7,840.05-3,163.34

Finding the Fourth Proportional to 5,681.72, 7,840.05 and 3,163.34

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Solution

The fourth proportional to 5,681.72, 7,840.05 and 3,163.34 is: 4,365.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.72 : 7,840.05 = 3,163.34 : x
  2. Step 2: Convert to fraction form
    5,681.72/7,840.05 = 3,163.34/x
  3. Step 3: Cross multiply
    5,681.72x = 7,840.05 × 3,163.34
  4. Step 4: Simplify right side
    5,681.72x = 24,800,743.77
  5. Step 5: Solve for x
    x = 24,800,743.77/5,681.72
  6. Step 6: Final answer
    x = 4,365.01

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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.