Home / 6,980.08-10,457.76-3,685.90

Finding the Fourth Proportional to 6,980.08, 10,457.76 and 3,685.90

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Solution

The fourth proportional to 6,980.08, 10,457.76 and 3,685.90 is: 5,522.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,980.08 : 10,457.76 = 3,685.90 : x
  2. Step 2: Convert to fraction form
    6,980.08/10,457.76 = 3,685.90/x
  3. Step 3: Cross multiply
    6,980.08x = 10,457.76 × 3,685.90
  4. Step 4: Simplify right side
    6,980.08x = 38,546,257.58
  5. Step 5: Solve for x
    x = 38,546,257.58/6,980.08
  6. Step 6: Final answer
    x = 5,522.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.