Home / 5,345.19-8,018.60-3,155.49

Finding the Fourth Proportional to 5,345.19, 8,018.60 and 3,155.49

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Solution

The fourth proportional to 5,345.19, 8,018.60 and 3,155.49 is: 4,733.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.19 : 8,018.60 = 3,155.49 : x
  2. Step 2: Convert to fraction form
    5,345.19/8,018.60 = 3,155.49/x
  3. Step 3: Cross multiply
    5,345.19x = 8,018.60 × 3,155.49
  4. Step 4: Simplify right side
    5,345.19x = 25,302,596.34
  5. Step 5: Solve for x
    x = 25,302,596.34/5,345.19
  6. Step 6: Final answer
    x = 4,733.71

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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.