Home / 2,770.24-4,137.40-2,509.72

Finding the Fourth Proportional to 2,770.24, 4,137.40 and 2,509.72

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Solution

The fourth proportional to 2,770.24, 4,137.40 and 2,509.72 is: 3,748.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.24 : 4,137.40 = 2,509.72 : x
  2. Step 2: Convert to fraction form
    2,770.24/4,137.40 = 2,509.72/x
  3. Step 3: Cross multiply
    2,770.24x = 4,137.40 × 2,509.72
  4. Step 4: Simplify right side
    2,770.24x = 10,383,715.53
  5. Step 5: Solve for x
    x = 10,383,715.53/2,770.24
  6. Step 6: Final answer
    x = 3,748.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.