Home / 3,911.57-5,395.95-2,652.20

Finding the Fourth Proportional to 3,911.57, 5,395.95 and 2,652.20

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Solution

The fourth proportional to 3,911.57, 5,395.95 and 2,652.20 is: 3,658.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.57 : 5,395.95 = 2,652.20 : x
  2. Step 2: Convert to fraction form
    3,911.57/5,395.95 = 2,652.20/x
  3. Step 3: Cross multiply
    3,911.57x = 5,395.95 × 2,652.20
  4. Step 4: Simplify right side
    3,911.57x = 14,311,138.59
  5. Step 5: Solve for x
    x = 14,311,138.59/3,911.57
  6. Step 6: Final answer
    x = 3,658.67

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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.