Home / 2,239.86-3,090.87-1,245.10

Finding the Fourth Proportional to 2,239.86, 3,090.87 and 1,245.10

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Solution

The fourth proportional to 2,239.86, 3,090.87 and 1,245.10 is: 1,718.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.86 : 3,090.87 = 1,245.10 : x
  2. Step 2: Convert to fraction form
    2,239.86/3,090.87 = 1,245.10/x
  3. Step 3: Cross multiply
    2,239.86x = 3,090.87 × 1,245.10
  4. Step 4: Simplify right side
    2,239.86x = 3,848,439.12
  5. Step 5: Solve for x
    x = 3,848,439.12/2,239.86
  6. Step 6: Final answer
    x = 1,718.16

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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.