Home / 1,928.05-2,660.62-1,088.77

Finding the Fourth Proportional to 1,928.05, 2,660.62 and 1,088.77

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Solution

The fourth proportional to 1,928.05, 2,660.62 and 1,088.77 is: 1,502.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.05 : 2,660.62 = 1,088.77 : x
  2. Step 2: Convert to fraction form
    1,928.05/2,660.62 = 1,088.77/x
  3. Step 3: Cross multiply
    1,928.05x = 2,660.62 × 1,088.77
  4. Step 4: Simplify right side
    1,928.05x = 2,896,803.24
  5. Step 5: Solve for x
    x = 2,896,803.24/1,928.05
  6. Step 6: Final answer
    x = 1,502.45

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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.