Home / 3,147.70-4,341.18-2,651.50

Finding the Fourth Proportional to 3,147.70, 4,341.18 and 2,651.50

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Solution

The fourth proportional to 3,147.70, 4,341.18 and 2,651.50 is: 3,656.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.70 : 4,341.18 = 2,651.50 : x
  2. Step 2: Convert to fraction form
    3,147.70/4,341.18 = 2,651.50/x
  3. Step 3: Cross multiply
    3,147.70x = 4,341.18 × 2,651.50
  4. Step 4: Simplify right side
    3,147.70x = 11,510,638.77
  5. Step 5: Solve for x
    x = 11,510,638.77/3,147.70
  6. Step 6: Final answer
    x = 3,656.84

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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.