Home / 3,925.24-5,412.72-2,928.92

Finding the Fourth Proportional to 3,925.24, 5,412.72 and 2,928.92

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Solution

The fourth proportional to 3,925.24, 5,412.72 and 2,928.92 is: 4,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925.24 : 5,412.72 = 2,928.92 : x
  2. Step 2: Convert to fraction form
    3,925.24/5,412.72 = 2,928.92/x
  3. Step 3: Cross multiply
    3,925.24x = 5,412.72 × 2,928.92
  4. Step 4: Simplify right side
    3,925.24x = 15,853,423.86
  5. Step 5: Solve for x
    x = 15,853,423.86/3,925.24
  6. Step 6: Final answer
    x = 4,038.84

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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.