Home / 2,910.21-4,014.92-1,775.30

Finding the Fourth Proportional to 2,910.21, 4,014.92 and 1,775.30

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Solution

The fourth proportional to 2,910.21, 4,014.92 and 1,775.30 is: 2,449.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.21 : 4,014.92 = 1,775.30 : x
  2. Step 2: Convert to fraction form
    2,910.21/4,014.92 = 1,775.30/x
  3. Step 3: Cross multiply
    2,910.21x = 4,014.92 × 1,775.30
  4. Step 4: Simplify right side
    2,910.21x = 7,127,658.52
  5. Step 5: Solve for x
    x = 7,127,658.52/2,910.21
  6. Step 6: Final answer
    x = 2,449.19

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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.