Home / 1,927.56-2,660.46-1,131.24

Finding the Fourth Proportional to 1,927.56, 2,660.46 and 1,131.24

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Solution

The fourth proportional to 1,927.56, 2,660.46 and 1,131.24 is: 1,561.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.56 : 2,660.46 = 1,131.24 : x
  2. Step 2: Convert to fraction form
    1,927.56/2,660.46 = 1,131.24/x
  3. Step 3: Cross multiply
    1,927.56x = 2,660.46 × 1,131.24
  4. Step 4: Simplify right side
    1,927.56x = 3,009,618.77
  5. Step 5: Solve for x
    x = 3,009,618.77/1,927.56
  6. Step 6: Final answer
    x = 1,561.36

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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.