Home / 7,130.50-10,697.25-2,688.08

Finding the Fourth Proportional to 7,130.50, 10,697.25 and 2,688.08

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Solution

The fourth proportional to 7,130.50, 10,697.25 and 2,688.08 is: 4,032.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.50 : 10,697.25 = 2,688.08 : x
  2. Step 2: Convert to fraction form
    7,130.50/10,697.25 = 2,688.08/x
  3. Step 3: Cross multiply
    7,130.50x = 10,697.25 × 2,688.08
  4. Step 4: Simplify right side
    7,130.50x = 28,755,020.37
  5. Step 5: Solve for x
    x = 28,755,020.37/7,130.50
  6. Step 6: Final answer
    x = 4,032.68

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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.