Home / 3,945.66-5,445.63-2,434.11

Finding the Fourth Proportional to 3,945.66, 5,445.63 and 2,434.11

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Solution

The fourth proportional to 3,945.66, 5,445.63 and 2,434.11 is: 3,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.66 : 5,445.63 = 2,434.11 : x
  2. Step 2: Convert to fraction form
    3,945.66/5,445.63 = 2,434.11/x
  3. Step 3: Cross multiply
    3,945.66x = 5,445.63 × 2,434.11
  4. Step 4: Simplify right side
    3,945.66x = 13,255,242.02
  5. Step 5: Solve for x
    x = 13,255,242.02/3,945.66
  6. Step 6: Final answer
    x = 3,359.45

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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.