Home / 2,428.41-3,646.26-1,389.58

Finding the Fourth Proportional to 2,428.41, 3,646.26 and 1,389.58

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Solution

The fourth proportional to 2,428.41, 3,646.26 and 1,389.58 is: 2,086.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.41 : 3,646.26 = 1,389.58 : x
  2. Step 2: Convert to fraction form
    2,428.41/3,646.26 = 1,389.58/x
  3. Step 3: Cross multiply
    2,428.41x = 3,646.26 × 1,389.58
  4. Step 4: Simplify right side
    2,428.41x = 5,066,763.02
  5. Step 5: Solve for x
    x = 5,066,763.02/2,428.41
  6. Step 6: Final answer
    x = 2,086.46

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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.