Home / 1,917.99-2,877.20-1,434.12

Finding the Fourth Proportional to 1,917.99, 2,877.20 and 1,434.12

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Solution

The fourth proportional to 1,917.99, 2,877.20 and 1,434.12 is: 2,151.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.99 : 2,877.20 = 1,434.12 : x
  2. Step 2: Convert to fraction form
    1,917.99/2,877.20 = 1,434.12/x
  3. Step 3: Cross multiply
    1,917.99x = 2,877.20 × 1,434.12
  4. Step 4: Simplify right side
    1,917.99x = 4,126,242.89
  5. Step 5: Solve for x
    x = 4,126,242.89/1,917.99
  6. Step 6: Final answer
    x = 2,151.34

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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.