Home / 4,639.16-6,392.80-3,309.12

Finding the Fourth Proportional to 4,639.16, 6,392.80 and 3,309.12

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Solution

The fourth proportional to 4,639.16, 6,392.80 and 3,309.12 is: 4,559.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,639.16 : 6,392.80 = 3,309.12 : x
  2. Step 2: Convert to fraction form
    4,639.16/6,392.80 = 3,309.12/x
  3. Step 3: Cross multiply
    4,639.16x = 6,392.80 × 3,309.12
  4. Step 4: Simplify right side
    4,639.16x = 21,154,542.34
  5. Step 5: Solve for x
    x = 21,154,542.34/4,639.16
  6. Step 6: Final answer
    x = 4,559.99

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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.