Home / 7,070.09-10,607.96-2,912.15

Finding the Fourth Proportional to 7,070.09, 10,607.96 and 2,912.15

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Solution

The fourth proportional to 7,070.09, 10,607.96 and 2,912.15 is: 4,369.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.09 : 10,607.96 = 2,912.15 : x
  2. Step 2: Convert to fraction form
    7,070.09/10,607.96 = 2,912.15/x
  3. Step 3: Cross multiply
    7,070.09x = 10,607.96 × 2,912.15
  4. Step 4: Simplify right side
    7,070.09x = 30,892,004.51
  5. Step 5: Solve for x
    x = 30,892,004.51/7,070.09
  6. Step 6: Final answer
    x = 4,369.40

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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.