Home / 2,974.32-4,103.28-1,854.45

Finding the Fourth Proportional to 2,974.32, 4,103.28 and 1,854.45

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Solution

The fourth proportional to 2,974.32, 4,103.28 and 1,854.45 is: 2,558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.32 : 4,103.28 = 1,854.45 : x
  2. Step 2: Convert to fraction form
    2,974.32/4,103.28 = 1,854.45/x
  3. Step 3: Cross multiply
    2,974.32x = 4,103.28 × 1,854.45
  4. Step 4: Simplify right side
    2,974.32x = 7,609,327.60
  5. Step 5: Solve for x
    x = 7,609,327.60/2,974.32
  6. Step 6: Final answer
    x = 2,558.34

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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.