Home / 3,140.42-4,333.95-1,743.20

Finding the Fourth Proportional to 3,140.42, 4,333.95 and 1,743.20

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Solution

The fourth proportional to 3,140.42, 4,333.95 and 1,743.20 is: 2,405.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.42 : 4,333.95 = 1,743.20 : x
  2. Step 2: Convert to fraction form
    3,140.42/4,333.95 = 1,743.20/x
  3. Step 3: Cross multiply
    3,140.42x = 4,333.95 × 1,743.20
  4. Step 4: Simplify right side
    3,140.42x = 7,554,941.64
  5. Step 5: Solve for x
    x = 7,554,941.64/3,140.42
  6. Step 6: Final answer
    x = 2,405.71

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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.