Home / 3,541.79-4,887.66-1,970.19

Finding the Fourth Proportional to 3,541.79, 4,887.66 and 1,970.19

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Solution

The fourth proportional to 3,541.79, 4,887.66 and 1,970.19 is: 2,718.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,541.79 : 4,887.66 = 1,970.19 : x
  2. Step 2: Convert to fraction form
    3,541.79/4,887.66 = 1,970.19/x
  3. Step 3: Cross multiply
    3,541.79x = 4,887.66 × 1,970.19
  4. Step 4: Simplify right side
    3,541.79x = 9,629,618.86
  5. Step 5: Solve for x
    x = 9,629,618.86/3,541.79
  6. Step 6: Final answer
    x = 2,718.86

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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.