Home / 5,311.08-7,971.66-2,390.76

Finding the Fourth Proportional to 5,311.08, 7,971.66 and 2,390.76

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Solution

The fourth proportional to 5,311.08, 7,971.66 and 2,390.76 is: 3,588.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.08 : 7,971.66 = 2,390.76 : x
  2. Step 2: Convert to fraction form
    5,311.08/7,971.66 = 2,390.76/x
  3. Step 3: Cross multiply
    5,311.08x = 7,971.66 × 2,390.76
  4. Step 4: Simplify right side
    5,311.08x = 19,058,325.86
  5. Step 5: Solve for x
    x = 19,058,325.86/5,311.08
  6. Step 6: Final answer
    x = 3,588.41

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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.