Home / 5,345.80-8,018.70-3,502.60

Finding the Fourth Proportional to 5,345.80, 8,018.70 and 3,502.60

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Solution

The fourth proportional to 5,345.80, 8,018.70 and 3,502.60 is: 5,253.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.80 : 8,018.70 = 3,502.60 : x
  2. Step 2: Convert to fraction form
    5,345.80/8,018.70 = 3,502.60/x
  3. Step 3: Cross multiply
    5,345.80x = 8,018.70 × 3,502.60
  4. Step 4: Simplify right side
    5,345.80x = 28,086,298.62
  5. Step 5: Solve for x
    x = 28,086,298.62/5,345.80
  6. Step 6: Final answer
    x = 5,253.90

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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.