Home / 5,276.87-7,278.91-3,484.37

Finding the Fourth Proportional to 5,276.87, 7,278.91 and 3,484.37

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Solution

The fourth proportional to 5,276.87, 7,278.91 and 3,484.37 is: 4,806.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.87 : 7,278.91 = 3,484.37 : x
  2. Step 2: Convert to fraction form
    5,276.87/7,278.91 = 3,484.37/x
  3. Step 3: Cross multiply
    5,276.87x = 7,278.91 × 3,484.37
  4. Step 4: Simplify right side
    5,276.87x = 25,362,370.53
  5. Step 5: Solve for x
    x = 25,362,370.53/5,276.87
  6. Step 6: Final answer
    x = 4,806.33

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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.