Home / 2,435.70-3,361.29-1,387.77

Finding the Fourth Proportional to 2,435.70, 3,361.29 and 1,387.77

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Solution

The fourth proportional to 2,435.70, 3,361.29 and 1,387.77 is: 1,915.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,435.70 : 3,361.29 = 1,387.77 : x
  2. Step 2: Convert to fraction form
    2,435.70/3,361.29 = 1,387.77/x
  3. Step 3: Cross multiply
    2,435.70x = 3,361.29 × 1,387.77
  4. Step 4: Simplify right side
    2,435.70x = 4,664,697.42
  5. Step 5: Solve for x
    x = 4,664,697.42/2,435.70
  6. Step 6: Final answer
    x = 1,915.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.