Home / 6,515.95-8,990.44-3,864.01

Finding the Fourth Proportional to 6,515.95, 8,990.44 and 3,864.01

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Solution

The fourth proportional to 6,515.95, 8,990.44 and 3,864.01 is: 5,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.95 : 8,990.44 = 3,864.01 : x
  2. Step 2: Convert to fraction form
    6,515.95/8,990.44 = 3,864.01/x
  3. Step 3: Cross multiply
    6,515.95x = 8,990.44 × 3,864.01
  4. Step 4: Simplify right side
    6,515.95x = 34,739,150.06
  5. Step 5: Solve for x
    x = 34,739,150.06/6,515.95
  6. Step 6: Final answer
    x = 5,331.40

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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.