Home / 6,312.57-8,711.37-3,518.07

Finding the Fourth Proportional to 6,312.57, 8,711.37 and 3,518.07

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Solution

The fourth proportional to 6,312.57, 8,711.37 and 3,518.07 is: 4,854.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,312.57 : 8,711.37 = 3,518.07 : x
  2. Step 2: Convert to fraction form
    6,312.57/8,711.37 = 3,518.07/x
  3. Step 3: Cross multiply
    6,312.57x = 8,711.37 × 3,518.07
  4. Step 4: Simplify right side
    6,312.57x = 30,647,209.46
  5. Step 5: Solve for x
    x = 30,647,209.46/6,312.57
  6. Step 6: Final answer
    x = 4,854.95

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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.