Home / 6,315.24-8,715.04-3,520.76

Finding the Fourth Proportional to 6,315.24, 8,715.04 and 3,520.76

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Solution

The fourth proportional to 6,315.24, 8,715.04 and 3,520.76 is: 4,858.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.24 : 8,715.04 = 3,520.76 : x
  2. Step 2: Convert to fraction form
    6,315.24/8,715.04 = 3,520.76/x
  3. Step 3: Cross multiply
    6,315.24x = 8,715.04 × 3,520.76
  4. Step 4: Simplify right side
    6,315.24x = 30,683,564.23
  5. Step 5: Solve for x
    x = 30,683,564.23/6,315.24
  6. Step 6: Final answer
    x = 4,858.65

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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.