Home / 5,415.36-8,123.04-3,943.95

Finding the Fourth Proportional to 5,415.36, 8,123.04 and 3,943.95

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Solution

The fourth proportional to 5,415.36, 8,123.04 and 3,943.95 is: 5,915.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.36 : 8,123.04 = 3,943.95 : x
  2. Step 2: Convert to fraction form
    5,415.36/8,123.04 = 3,943.95/x
  3. Step 3: Cross multiply
    5,415.36x = 8,123.04 × 3,943.95
  4. Step 4: Simplify right side
    5,415.36x = 32,036,863.61
  5. Step 5: Solve for x
    x = 32,036,863.61/5,415.36
  6. Step 6: Final answer
    x = 5,915.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.