Home / 5,454.81-7,528.59-3,216.54

Finding the Fourth Proportional to 5,454.81, 7,528.59 and 3,216.54

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Solution

The fourth proportional to 5,454.81, 7,528.59 and 3,216.54 is: 4,439.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.81 : 7,528.59 = 3,216.54 : x
  2. Step 2: Convert to fraction form
    5,454.81/7,528.59 = 3,216.54/x
  3. Step 3: Cross multiply
    5,454.81x = 7,528.59 × 3,216.54
  4. Step 4: Simplify right side
    5,454.81x = 24,216,010.88
  5. Step 5: Solve for x
    x = 24,216,010.88/5,454.81
  6. Step 6: Final answer
    x = 4,439.39

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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.