Home / 3,140.50-4,333.89-1,743.26

Finding the Fourth Proportional to 3,140.50, 4,333.89 and 1,743.26

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Solution

The fourth proportional to 3,140.50, 4,333.89 and 1,743.26 is: 2,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.50 : 4,333.89 = 1,743.26 : x
  2. Step 2: Convert to fraction form
    3,140.50/4,333.89 = 1,743.26/x
  3. Step 3: Cross multiply
    3,140.50x = 4,333.89 × 1,743.26
  4. Step 4: Simplify right side
    3,140.50x = 7,555,097.08
  5. Step 5: Solve for x
    x = 7,555,097.08/3,140.50
  6. Step 6: Final answer
    x = 2,405.70

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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.