Home / 2,259.77-3,120.92-1,553.48

Finding the Fourth Proportional to 2,259.77, 3,120.92 and 1,553.48

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Solution

The fourth proportional to 2,259.77, 3,120.92 and 1,553.48 is: 2,145.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.77 : 3,120.92 = 1,553.48 : x
  2. Step 2: Convert to fraction form
    2,259.77/3,120.92 = 1,553.48/x
  3. Step 3: Cross multiply
    2,259.77x = 3,120.92 × 1,553.48
  4. Step 4: Simplify right side
    2,259.77x = 4,848,263.43
  5. Step 5: Solve for x
    x = 4,848,263.43/2,259.77
  6. Step 6: Final answer
    x = 2,145.47

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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.