Home / 2,224.78-3,070.20-1,230.10

Finding the Fourth Proportional to 2,224.78, 3,070.20 and 1,230.10

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Solution

The fourth proportional to 2,224.78, 3,070.20 and 1,230.10 is: 1,697.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.78 : 3,070.20 = 1,230.10 : x
  2. Step 2: Convert to fraction form
    2,224.78/3,070.20 = 1,230.10/x
  3. Step 3: Cross multiply
    2,224.78x = 3,070.20 × 1,230.10
  4. Step 4: Simplify right side
    2,224.78x = 3,776,653.02
  5. Step 5: Solve for x
    x = 3,776,653.02/2,224.78
  6. Step 6: Final answer
    x = 1,697.54

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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.