Home / 7,201.29-10,840.15-5,135.59

Finding the Fourth Proportional to 7,201.29, 10,840.15 and 5,135.59

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Solution

The fourth proportional to 7,201.29, 10,840.15 and 5,135.59 is: 7,730.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,201.29 : 10,840.15 = 5,135.59 : x
  2. Step 2: Convert to fraction form
    7,201.29/10,840.15 = 5,135.59/x
  3. Step 3: Cross multiply
    7,201.29x = 10,840.15 × 5,135.59
  4. Step 4: Simplify right side
    7,201.29x = 55,670,496.04
  5. Step 5: Solve for x
    x = 55,670,496.04/7,201.29
  6. Step 6: Final answer
    x = 7,730.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.