Home / 1,841.70-2,541.61-1,398.84

Finding the Fourth Proportional to 1,841.70, 2,541.61 and 1,398.84

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Solution

The fourth proportional to 1,841.70, 2,541.61 and 1,398.84 is: 1,930.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.70 : 2,541.61 = 1,398.84 : x
  2. Step 2: Convert to fraction form
    1,841.70/2,541.61 = 1,398.84/x
  3. Step 3: Cross multiply
    1,841.70x = 2,541.61 × 1,398.84
  4. Step 4: Simplify right side
    1,841.70x = 3,555,305.73
  5. Step 5: Solve for x
    x = 3,555,305.73/1,841.70
  6. Step 6: Final answer
    x = 1,930.45

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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.