Home / 1,435.05-2,147.44-1,124.77

Finding the Fourth Proportional to 1,435.05, 2,147.44 and 1,124.77

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Solution

The fourth proportional to 1,435.05, 2,147.44 and 1,124.77 is: 1,683.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435.05 : 2,147.44 = 1,124.77 : x
  2. Step 2: Convert to fraction form
    1,435.05/2,147.44 = 1,124.77/x
  3. Step 3: Cross multiply
    1,435.05x = 2,147.44 × 1,124.77
  4. Step 4: Simplify right side
    1,435.05x = 2,415,365.99
  5. Step 5: Solve for x
    x = 2,415,365.99/1,435.05
  6. Step 6: Final answer
    x = 1,683.13

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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.