Home / 1,928.32-2,661.21-1,088.73

Finding the Fourth Proportional to 1,928.32, 2,661.21 and 1,088.73

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Solution

The fourth proportional to 1,928.32, 2,661.21 and 1,088.73 is: 1,502.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.32 : 2,661.21 = 1,088.73 : x
  2. Step 2: Convert to fraction form
    1,928.32/2,661.21 = 1,088.73/x
  3. Step 3: Cross multiply
    1,928.32x = 2,661.21 × 1,088.73
  4. Step 4: Simplify right side
    1,928.32x = 2,897,339.16
  5. Step 5: Solve for x
    x = 2,897,339.16/1,928.32
  6. Step 6: Final answer
    x = 1,502.52

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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.