Home / 2,044.47-2,820.39-1,381.55

Finding the Fourth Proportional to 2,044.47, 2,820.39 and 1,381.55

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Solution

The fourth proportional to 2,044.47, 2,820.39 and 1,381.55 is: 1,905.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,044.47 : 2,820.39 = 1,381.55 : x
  2. Step 2: Convert to fraction form
    2,044.47/2,820.39 = 1,381.55/x
  3. Step 3: Cross multiply
    2,044.47x = 2,820.39 × 1,381.55
  4. Step 4: Simplify right side
    2,044.47x = 3,896,495.70
  5. Step 5: Solve for x
    x = 3,896,495.70/2,044.47
  6. Step 6: Final answer
    x = 1,905.87

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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.