Home / 5,309.87-7,320.29-4,236.79

Finding the Fourth Proportional to 5,309.87, 7,320.29 and 4,236.79

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Solution

The fourth proportional to 5,309.87, 7,320.29 and 4,236.79 is: 5,840.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.87 : 7,320.29 = 4,236.79 : x
  2. Step 2: Convert to fraction form
    5,309.87/7,320.29 = 4,236.79/x
  3. Step 3: Cross multiply
    5,309.87x = 7,320.29 × 4,236.79
  4. Step 4: Simplify right side
    5,309.87x = 31,014,531.47
  5. Step 5: Solve for x
    x = 31,014,531.47/5,309.87
  6. Step 6: Final answer
    x = 5,840.92

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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.