Home / 3,428.64-5,143.53-1,347.53

Finding the Fourth Proportional to 3,428.64, 5,143.53 and 1,347.53

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Solution

The fourth proportional to 3,428.64, 5,143.53 and 1,347.53 is: 2,021.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.64 : 5,143.53 = 1,347.53 : x
  2. Step 2: Convert to fraction form
    3,428.64/5,143.53 = 1,347.53/x
  3. Step 3: Cross multiply
    3,428.64x = 5,143.53 × 1,347.53
  4. Step 4: Simplify right side
    3,428.64x = 6,931,054.24
  5. Step 5: Solve for x
    x = 6,931,054.24/3,428.64
  6. Step 6: Final answer
    x = 2,021.52

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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.