Home / 5,661.36-7,810.56-3,672.36

Finding the Fourth Proportional to 5,661.36, 7,810.56 and 3,672.36

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Solution

The fourth proportional to 5,661.36, 7,810.56 and 3,672.36 is: 5,066.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.36 : 7,810.56 = 3,672.36 : x
  2. Step 2: Convert to fraction form
    5,661.36/7,810.56 = 3,672.36/x
  3. Step 3: Cross multiply
    5,661.36x = 7,810.56 × 3,672.36
  4. Step 4: Simplify right side
    5,661.36x = 28,683,188.12
  5. Step 5: Solve for x
    x = 28,683,188.12/5,661.36
  6. Step 6: Final answer
    x = 5,066.48

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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.