Home / 5,406.40-8,111.42-5,369.95

Finding the Fourth Proportional to 5,406.40, 8,111.42 and 5,369.95

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Solution

The fourth proportional to 5,406.40, 8,111.42 and 5,369.95 is: 8,056.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.40 : 8,111.42 = 5,369.95 : x
  2. Step 2: Convert to fraction form
    5,406.40/8,111.42 = 5,369.95/x
  3. Step 3: Cross multiply
    5,406.40x = 8,111.42 × 5,369.95
  4. Step 4: Simplify right side
    5,406.40x = 43,557,852.42
  5. Step 5: Solve for x
    x = 43,557,852.42/5,406.40
  6. Step 6: Final answer
    x = 8,056.73

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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.