Home / 5,345.40-8,003.70-3,876.60

Finding the Fourth Proportional to 5,345.40, 8,003.70 and 3,876.60

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Solution

The fourth proportional to 5,345.40, 8,003.70 and 3,876.60 is: 5,804.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.40 : 8,003.70 = 3,876.60 : x
  2. Step 2: Convert to fraction form
    5,345.40/8,003.70 = 3,876.60/x
  3. Step 3: Cross multiply
    5,345.40x = 8,003.70 × 3,876.60
  4. Step 4: Simplify right side
    5,345.40x = 31,027,143.42
  5. Step 5: Solve for x
    x = 31,027,143.42/5,345.40
  6. Step 6: Final answer
    x = 5,804.46

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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.