Home / 5,278.14-7,280.66-3,485.63

Finding the Fourth Proportional to 5,278.14, 7,280.66 and 3,485.63

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Solution

The fourth proportional to 5,278.14, 7,280.66 and 3,485.63 is: 4,808.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.14 : 7,280.66 = 3,485.63 : x
  2. Step 2: Convert to fraction form
    5,278.14/7,280.66 = 3,485.63/x
  3. Step 3: Cross multiply
    5,278.14x = 7,280.66 × 3,485.63
  4. Step 4: Simplify right side
    5,278.14x = 25,377,633.08
  5. Step 5: Solve for x
    x = 25,377,633.08/5,278.14
  6. Step 6: Final answer
    x = 4,808.06

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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.