Home / 2,845.17-3,925.40-1,665.41

Finding the Fourth Proportional to 2,845.17, 3,925.40 and 1,665.41

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Solution

The fourth proportional to 2,845.17, 3,925.40 and 1,665.41 is: 2,297.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.17 : 3,925.40 = 1,665.41 : x
  2. Step 2: Convert to fraction form
    2,845.17/3,925.40 = 1,665.41/x
  3. Step 3: Cross multiply
    2,845.17x = 3,925.40 × 1,665.41
  4. Step 4: Simplify right side
    2,845.17x = 6,537,372.46
  5. Step 5: Solve for x
    x = 6,537,372.46/2,845.17
  6. Step 6: Final answer
    x = 2,297.71

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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.