Home / 1,591.92-2,196.32-928.23

Finding the Fourth Proportional to 1,591.92, 2,196.32 and 928.23

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Solution

The fourth proportional to 1,591.92, 2,196.32 and 928.23 is: 1,280.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.92 : 2,196.32 = 928.23 : x
  2. Step 2: Convert to fraction form
    1,591.92/2,196.32 = 928.23/x
  3. Step 3: Cross multiply
    1,591.92x = 2,196.32 × 928.23
  4. Step 4: Simplify right side
    1,591.92x = 2,038,677.24
  5. Step 5: Solve for x
    x = 2,038,677.24/1,591.92
  6. Step 6: Final answer
    x = 1,280.64

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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.