Home / 3,648.45-5,037.27-2,807.67

Finding the Fourth Proportional to 3,648.45, 5,037.27 and 2,807.67

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Solution

The fourth proportional to 3,648.45, 5,037.27 and 2,807.67 is: 3,876.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,648.45 : 5,037.27 = 2,807.67 : x
  2. Step 2: Convert to fraction form
    3,648.45/5,037.27 = 2,807.67/x
  3. Step 3: Cross multiply
    3,648.45x = 5,037.27 × 2,807.67
  4. Step 4: Simplify right side
    3,648.45x = 14,142,987.68
  5. Step 5: Solve for x
    x = 14,142,987.68/3,648.45
  6. Step 6: Final answer
    x = 3,876.44

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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.