Home / 1,840.70-2,540.23-1,397.84

Finding the Fourth Proportional to 1,840.70, 2,540.23 and 1,397.84

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Solution

The fourth proportional to 1,840.70, 2,540.23 and 1,397.84 is: 1,929.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.70 : 2,540.23 = 1,397.84 : x
  2. Step 2: Convert to fraction form
    1,840.70/2,540.23 = 1,397.84/x
  3. Step 3: Cross multiply
    1,840.70x = 2,540.23 × 1,397.84
  4. Step 4: Simplify right side
    1,840.70x = 3,550,818.91
  5. Step 5: Solve for x
    x = 3,550,818.91/1,840.70
  6. Step 6: Final answer
    x = 1,929.06

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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.