Home / 7,140.62-10,708.26-2,459.30

Finding the Fourth Proportional to 7,140.62, 10,708.26 and 2,459.30

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Solution

The fourth proportional to 7,140.62, 10,708.26 and 2,459.30 is: 3,688.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.62 : 10,708.26 = 2,459.30 : x
  2. Step 2: Convert to fraction form
    7,140.62/10,708.26 = 2,459.30/x
  3. Step 3: Cross multiply
    7,140.62x = 10,708.26 × 2,459.30
  4. Step 4: Simplify right side
    7,140.62x = 26,334,823.82
  5. Step 5: Solve for x
    x = 26,334,823.82/7,140.62
  6. Step 6: Final answer
    x = 3,688.03

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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.