Home / 3,143.42-4,338.10-1,746.20

Finding the Fourth Proportional to 3,143.42, 4,338.10 and 1,746.20

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Solution

The fourth proportional to 3,143.42, 4,338.10 and 1,746.20 is: 2,409.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.42 : 4,338.10 = 1,746.20 : x
  2. Step 2: Convert to fraction form
    3,143.42/4,338.10 = 1,746.20/x
  3. Step 3: Cross multiply
    3,143.42x = 4,338.10 × 1,746.20
  4. Step 4: Simplify right side
    3,143.42x = 7,575,190.22
  5. Step 5: Solve for x
    x = 7,575,190.22/3,143.42
  6. Step 6: Final answer
    x = 2,409.86

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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.