Home / 6,311.16-8,709.40-3,660.10

Finding the Fourth Proportional to 6,311.16, 8,709.40 and 3,660.10

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Solution

The fourth proportional to 6,311.16, 8,709.40 and 3,660.10 is: 5,050.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.16 : 8,709.40 = 3,660.10 : x
  2. Step 2: Convert to fraction form
    6,311.16/8,709.40 = 3,660.10/x
  3. Step 3: Cross multiply
    6,311.16x = 8,709.40 × 3,660.10
  4. Step 4: Simplify right side
    6,311.16x = 31,877,274.94
  5. Step 5: Solve for x
    x = 31,877,274.94/6,311.16
  6. Step 6: Final answer
    x = 5,050.94

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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.