Home / 2,047.20-3,070.22-730.78

Finding the Fourth Proportional to 2,047.20, 3,070.22 and 730.78

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Solution

The fourth proportional to 2,047.20, 3,070.22 and 730.78 is: 1,095.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,047.20 : 3,070.22 = 730.78 : x
  2. Step 2: Convert to fraction form
    2,047.20/3,070.22 = 730.78/x
  3. Step 3: Cross multiply
    2,047.20x = 3,070.22 × 730.78
  4. Step 4: Simplify right side
    2,047.20x = 2,243,655.37
  5. Step 5: Solve for x
    x = 2,243,655.37/2,047.20
  6. Step 6: Final answer
    x = 1,095.96

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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.