Home / 7,400.98-11,101.39-1,854.28

Finding the Fourth Proportional to 7,400.98, 11,101.39 and 1,854.28

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Solution

The fourth proportional to 7,400.98, 11,101.39 and 1,854.28 is: 2,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.98 : 11,101.39 = 1,854.28 : x
  2. Step 2: Convert to fraction form
    7,400.98/11,101.39 = 1,854.28/x
  3. Step 3: Cross multiply
    7,400.98x = 11,101.39 × 1,854.28
  4. Step 4: Simplify right side
    7,400.98x = 20,585,085.45
  5. Step 5: Solve for x
    x = 20,585,085.45/7,400.98
  6. Step 6: Final answer
    x = 2,781.40

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1.5x scale

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.