Home / 1,941.04-2,671.92-1,688.80

Finding the Fourth Proportional to 1,941.04, 2,671.92 and 1,688.80

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Solution

The fourth proportional to 1,941.04, 2,671.92 and 1,688.80 is: 2,324.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.04 : 2,671.92 = 1,688.80 : x
  2. Step 2: Convert to fraction form
    1,941.04/2,671.92 = 1,688.80/x
  3. Step 3: Cross multiply
    1,941.04x = 2,671.92 × 1,688.80
  4. Step 4: Simplify right side
    1,941.04x = 4,512,338.50
  5. Step 5: Solve for x
    x = 4,512,338.50/1,941.04
  6. Step 6: Final answer
    x = 2,324.70

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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.