Home / 6,515.07-8,990.81-3,530.93

Finding the Fourth Proportional to 6,515.07, 8,990.81 and 3,530.93

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Solution

The fourth proportional to 6,515.07, 8,990.81 and 3,530.93 is: 4,872.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.07 : 8,990.81 = 3,530.93 : x
  2. Step 2: Convert to fraction form
    6,515.07/8,990.81 = 3,530.93/x
  3. Step 3: Cross multiply
    6,515.07x = 8,990.81 × 3,530.93
  4. Step 4: Simplify right side
    6,515.07x = 31,745,858.14
  5. Step 5: Solve for x
    x = 31,745,858.14/6,515.07
  6. Step 6: Final answer
    x = 4,872.68

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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.