Home / 1,419.02-2,125.29-1,276.46

Finding the Fourth Proportional to 1,419.02, 2,125.29 and 1,276.46

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Solution

The fourth proportional to 1,419.02, 2,125.29 and 1,276.46 is: 1,911.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419.02 : 2,125.29 = 1,276.46 : x
  2. Step 2: Convert to fraction form
    1,419.02/2,125.29 = 1,276.46/x
  3. Step 3: Cross multiply
    1,419.02x = 2,125.29 × 1,276.46
  4. Step 4: Simplify right side
    1,419.02x = 2,712,847.67
  5. Step 5: Solve for x
    x = 2,712,847.67/1,419.02
  6. Step 6: Final answer
    x = 1,911.78

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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.