Home / 7,139.44-10,710.66-2,459.87

Finding the Fourth Proportional to 7,139.44, 10,710.66 and 2,459.87

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Solution

The fourth proportional to 7,139.44, 10,710.66 and 2,459.87 is: 3,690.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.44 : 10,710.66 = 2,459.87 : x
  2. Step 2: Convert to fraction form
    7,139.44/10,710.66 = 2,459.87/x
  3. Step 3: Cross multiply
    7,139.44x = 10,710.66 × 2,459.87
  4. Step 4: Simplify right side
    7,139.44x = 26,346,831.21
  5. Step 5: Solve for x
    x = 26,346,831.21/7,139.44
  6. Step 6: Final answer
    x = 3,690.32

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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.