Home / 1,928.08-2,660.61-1,088.74

Finding the Fourth Proportional to 1,928.08, 2,660.61 and 1,088.74

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Solution

The fourth proportional to 1,928.08, 2,660.61 and 1,088.74 is: 1,502.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.08 : 2,660.61 = 1,088.74 : x
  2. Step 2: Convert to fraction form
    1,928.08/2,660.61 = 1,088.74/x
  3. Step 3: Cross multiply
    1,928.08x = 2,660.61 × 1,088.74
  4. Step 4: Simplify right side
    1,928.08x = 2,896,712.53
  5. Step 5: Solve for x
    x = 2,896,712.53/1,928.08
  6. Step 6: Final answer
    x = 1,502.38

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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.