Home / 5,220.51-7,201.65-3,961.77

Finding the Fourth Proportional to 5,220.51, 7,201.65 and 3,961.77

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Solution

The fourth proportional to 5,220.51, 7,201.65 and 3,961.77 is: 5,465.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.51 : 7,201.65 = 3,961.77 : x
  2. Step 2: Convert to fraction form
    5,220.51/7,201.65 = 3,961.77/x
  3. Step 3: Cross multiply
    5,220.51x = 7,201.65 × 3,961.77
  4. Step 4: Simplify right side
    5,220.51x = 28,531,280.92
  5. Step 5: Solve for x
    x = 28,531,280.92/5,220.51
  6. Step 6: Final answer
    x = 5,465.23

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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.