Home / 1,841.90-2,540.75-1,178.51

Finding the Fourth Proportional to 1,841.90, 2,540.75 and 1,178.51

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Solution

The fourth proportional to 1,841.90, 2,540.75 and 1,178.51 is: 1,625.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.90 : 2,540.75 = 1,178.51 : x
  2. Step 2: Convert to fraction form
    1,841.90/2,540.75 = 1,178.51/x
  3. Step 3: Cross multiply
    1,841.90x = 2,540.75 × 1,178.51
  4. Step 4: Simplify right side
    1,841.90x = 2,994,280.69
  5. Step 5: Solve for x
    x = 2,994,280.69/1,841.90
  6. Step 6: Final answer
    x = 1,625.65

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1.5x scale

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.