Home / 3,925.34-5,416.86-2,156.95

Finding the Fourth Proportional to 3,925.34, 5,416.86 and 2,156.95

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Solution

The fourth proportional to 3,925.34, 5,416.86 and 2,156.95 is: 2,976.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925.34 : 5,416.86 = 2,156.95 : x
  2. Step 2: Convert to fraction form
    3,925.34/5,416.86 = 2,156.95/x
  3. Step 3: Cross multiply
    3,925.34x = 5,416.86 × 2,156.95
  4. Step 4: Simplify right side
    3,925.34x = 11,683,868.43
  5. Step 5: Solve for x
    x = 11,683,868.43/3,925.34
  6. Step 6: Final answer
    x = 2,976.52

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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.