Home / 3,509.32-5,261.28-1,400.71

Finding the Fourth Proportional to 3,509.32, 5,261.28 and 1,400.71

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Solution

The fourth proportional to 3,509.32, 5,261.28 and 1,400.71 is: 2,099.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.32 : 5,261.28 = 1,400.71 : x
  2. Step 2: Convert to fraction form
    3,509.32/5,261.28 = 1,400.71/x
  3. Step 3: Cross multiply
    3,509.32x = 5,261.28 × 1,400.71
  4. Step 4: Simplify right side
    3,509.32x = 7,369,527.51
  5. Step 5: Solve for x
    x = 7,369,527.51/3,509.32
  6. Step 6: Final answer
    x = 2,099.99

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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.