Home / 3,507.12-4,819.23-2,807.28

Finding the Fourth Proportional to 3,507.12, 4,819.23 and 2,807.28

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Solution

The fourth proportional to 3,507.12, 4,819.23 and 2,807.28 is: 3,857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.12 : 4,819.23 = 2,807.28 : x
  2. Step 2: Convert to fraction form
    3,507.12/4,819.23 = 2,807.28/x
  3. Step 3: Cross multiply
    3,507.12x = 4,819.23 × 2,807.28
  4. Step 4: Simplify right side
    3,507.12x = 13,528,927.99
  5. Step 5: Solve for x
    x = 13,528,927.99/3,507.12
  6. Step 6: Final answer
    x = 3,857.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.