Home / 4,900.30-7,349.54-2,557.78

Finding the Fourth Proportional to 4,900.30, 7,349.54 and 2,557.78

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Solution

The fourth proportional to 4,900.30, 7,349.54 and 2,557.78 is: 3,836.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,900.30 : 7,349.54 = 2,557.78 : x
  2. Step 2: Convert to fraction form
    4,900.30/7,349.54 = 2,557.78/x
  3. Step 3: Cross multiply
    4,900.30x = 7,349.54 × 2,557.78
  4. Step 4: Simplify right side
    4,900.30x = 18,798,475.26
  5. Step 5: Solve for x
    x = 18,798,475.26/4,900.30
  6. Step 6: Final answer
    x = 3,836.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.