Home / 3,925.42-5,411.48-2,805.95

Finding the Fourth Proportional to 3,925.42, 5,411.48 and 2,805.95

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Solution

The fourth proportional to 3,925.42, 5,411.48 and 2,805.95 is: 3,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925.42 : 5,411.48 = 2,805.95 : x
  2. Step 2: Convert to fraction form
    3,925.42/5,411.48 = 2,805.95/x
  3. Step 3: Cross multiply
    3,925.42x = 5,411.48 × 2,805.95
  4. Step 4: Simplify right side
    3,925.42x = 15,184,311.37
  5. Step 5: Solve for x
    x = 15,184,311.37/3,925.42
  6. Step 6: Final answer
    x = 3,868.20

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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.