Home / 6,515.04-8,992.32-3,722.16

Finding the Fourth Proportional to 6,515.04, 8,992.32 and 3,722.16

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Solution

The fourth proportional to 6,515.04, 8,992.32 and 3,722.16 is: 5,137.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.04 : 8,992.32 = 3,722.16 : x
  2. Step 2: Convert to fraction form
    6,515.04/8,992.32 = 3,722.16/x
  3. Step 3: Cross multiply
    6,515.04x = 8,992.32 × 3,722.16
  4. Step 4: Simplify right side
    6,515.04x = 33,470,853.81
  5. Step 5: Solve for x
    x = 33,470,853.81/6,515.04
  6. Step 6: Final answer
    x = 5,137.47

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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.