Home / 5,618.52-8,427.54-2,155.56

Finding the Fourth Proportional to 5,618.52, 8,427.54 and 2,155.56

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Solution

The fourth proportional to 5,618.52, 8,427.54 and 2,155.56 is: 3,233.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.52 : 8,427.54 = 2,155.56 : x
  2. Step 2: Convert to fraction form
    5,618.52/8,427.54 = 2,155.56/x
  3. Step 3: Cross multiply
    5,618.52x = 8,427.54 × 2,155.56
  4. Step 4: Simplify right side
    5,618.52x = 18,166,068.12
  5. Step 5: Solve for x
    x = 18,166,068.12/5,618.52
  6. Step 6: Final answer
    x = 3,233.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.