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Finding the Fourth Proportional to 6,309.04, 8,707 and 3,515.04

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Solution

The fourth proportional to 6,309.04, 8,707 and 3,515.04 is: 4,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,309.04 : 8,707 = 3,515.04 : x
  2. Step 2: Convert to fraction form
    6,309.04/8,707 = 3,515.04/x
  3. Step 3: Cross multiply
    6,309.04x = 8,707 × 3,515.04
  4. Step 4: Simplify right side
    6,309.04x = 30,605,453.28
  5. Step 5: Solve for x
    x = 30,605,453.28/6,309.04
  6. Step 6: Final answer
    x = 4,851.05

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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.