Home / 3,419.15-4,718.40-1,927.55

Finding the Fourth Proportional to 3,419.15, 4,718.40 and 1,927.55

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Solution

The fourth proportional to 3,419.15, 4,718.40 and 1,927.55 is: 2,660.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.15 : 4,718.40 = 1,927.55 : x
  2. Step 2: Convert to fraction form
    3,419.15/4,718.40 = 1,927.55/x
  3. Step 3: Cross multiply
    3,419.15x = 4,718.40 × 1,927.55
  4. Step 4: Simplify right side
    3,419.15x = 9,094,943.52
  5. Step 5: Solve for x
    x = 9,094,943.52/3,419.15
  6. Step 6: Final answer
    x = 2,660.00

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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.