Home / 2,845.49-3,925.20-1,666.34

Finding the Fourth Proportional to 2,845.49, 3,925.20 and 1,666.34

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Solution

The fourth proportional to 2,845.49, 3,925.20 and 1,666.34 is: 2,298.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.49 : 3,925.20 = 1,666.34 : x
  2. Step 2: Convert to fraction form
    2,845.49/3,925.20 = 1,666.34/x
  3. Step 3: Cross multiply
    2,845.49x = 3,925.20 × 1,666.34
  4. Step 4: Simplify right side
    2,845.49x = 6,540,717.77
  5. Step 5: Solve for x
    x = 6,540,717.77/2,845.49
  6. Step 6: Final answer
    x = 2,298.63

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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.