Home / 5,816.21-8,026.73-3,931.50

Finding the Fourth Proportional to 5,816.21, 8,026.73 and 3,931.50

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Solution

The fourth proportional to 5,816.21, 8,026.73 and 3,931.50 is: 5,425.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,816.21 : 8,026.73 = 3,931.50 : x
  2. Step 2: Convert to fraction form
    5,816.21/8,026.73 = 3,931.50/x
  3. Step 3: Cross multiply
    5,816.21x = 8,026.73 × 3,931.50
  4. Step 4: Simplify right side
    5,816.21x = 31,557,114.18
  5. Step 5: Solve for x
    x = 31,557,114.18/5,816.21
  6. Step 6: Final answer
    x = 5,425.72

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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.