Home / 5,810.81-8,018.64-3,158.15

Finding the Fourth Proportional to 5,810.81, 8,018.64 and 3,158.15

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Solution

The fourth proportional to 5,810.81, 8,018.64 and 3,158.15 is: 4,358.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.81 : 8,018.64 = 3,158.15 : x
  2. Step 2: Convert to fraction form
    5,810.81/8,018.64 = 3,158.15/x
  3. Step 3: Cross multiply
    5,810.81x = 8,018.64 × 3,158.15
  4. Step 4: Simplify right side
    5,810.81x = 25,324,027.82
  5. Step 5: Solve for x
    x = 25,324,027.82/5,810.81
  6. Step 6: Final answer
    x = 4,358.09

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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.