Home / 6,315.25-8,711.48-3,953.29

Finding the Fourth Proportional to 6,315.25, 8,711.48 and 3,953.29

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Solution

The fourth proportional to 6,315.25, 8,711.48 and 3,953.29 is: 5,453.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.25 : 8,711.48 = 3,953.29 : x
  2. Step 2: Convert to fraction form
    6,315.25/8,711.48 = 3,953.29/x
  3. Step 3: Cross multiply
    6,315.25x = 8,711.48 × 3,953.29
  4. Step 4: Simplify right side
    6,315.25x = 34,439,006.77
  5. Step 5: Solve for x
    x = 34,439,006.77/6,315.25
  6. Step 6: Final answer
    x = 5,453.31

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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.