Home / 3,541.38-4,887.40-1,969.77

Finding the Fourth Proportional to 3,541.38, 4,887.40 and 1,969.77

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Solution

The fourth proportional to 3,541.38, 4,887.40 and 1,969.77 is: 2,718.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,541.38 : 4,887.40 = 1,969.77 : x
  2. Step 2: Convert to fraction form
    3,541.38/4,887.40 = 1,969.77/x
  3. Step 3: Cross multiply
    3,541.38x = 4,887.40 × 1,969.77
  4. Step 4: Simplify right side
    3,541.38x = 9,627,053.90
  5. Step 5: Solve for x
    x = 9,627,053.90/3,541.38
  6. Step 6: Final answer
    x = 2,718.45

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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.