Home / 2,288.56-3,157.20-1,356.48

Finding the Fourth Proportional to 2,288.56, 3,157.20 and 1,356.48

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Solution

The fourth proportional to 2,288.56, 3,157.20 and 1,356.48 is: 1,871.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,288.56 : 3,157.20 = 1,356.48 : x
  2. Step 2: Convert to fraction form
    2,288.56/3,157.20 = 1,356.48/x
  3. Step 3: Cross multiply
    2,288.56x = 3,157.20 × 1,356.48
  4. Step 4: Simplify right side
    2,288.56x = 4,282,678.66
  5. Step 5: Solve for x
    x = 4,282,678.66/2,288.56
  6. Step 6: Final answer
    x = 1,871.34

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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.