Home / 5,278.93-7,285.81-3,040.39

Finding the Fourth Proportional to 5,278.93, 7,285.81 and 3,040.39

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Solution

The fourth proportional to 5,278.93, 7,285.81 and 3,040.39 is: 4,196.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.93 : 7,285.81 = 3,040.39 : x
  2. Step 2: Convert to fraction form
    5,278.93/7,285.81 = 3,040.39/x
  3. Step 3: Cross multiply
    5,278.93x = 7,285.81 × 3,040.39
  4. Step 4: Simplify right side
    5,278.93x = 22,151,703.87
  5. Step 5: Solve for x
    x = 22,151,703.87/5,278.93
  6. Step 6: Final answer
    x = 4,196.25

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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.