Home / 2,183.60-3,013.40-1,239.36

Finding the Fourth Proportional to 2,183.60, 3,013.40 and 1,239.36

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Solution

The fourth proportional to 2,183.60, 3,013.40 and 1,239.36 is: 1,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.60 : 3,013.40 = 1,239.36 : x
  2. Step 2: Convert to fraction form
    2,183.60/3,013.40 = 1,239.36/x
  3. Step 3: Cross multiply
    2,183.60x = 3,013.40 × 1,239.36
  4. Step 4: Simplify right side
    2,183.60x = 3,734,681.23
  5. Step 5: Solve for x
    x = 3,734,681.23/2,183.60
  6. Step 6: Final answer
    x = 1,710.34

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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.