Home / 1,671.61-2,304.35-1,228.74

Finding the Fourth Proportional to 1,671.61, 2,304.35 and 1,228.74

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Solution

The fourth proportional to 1,671.61, 2,304.35 and 1,228.74 is: 1,693.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.61 : 2,304.35 = 1,228.74 : x
  2. Step 2: Convert to fraction form
    1,671.61/2,304.35 = 1,228.74/x
  3. Step 3: Cross multiply
    1,671.61x = 2,304.35 × 1,228.74
  4. Step 4: Simplify right side
    1,671.61x = 2,831,447.02
  5. Step 5: Solve for x
    x = 2,831,447.02/1,671.61
  6. Step 6: Final answer
    x = 1,693.84

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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.