Home / 3,173.16-4,378.87-1,756.90

Finding the Fourth Proportional to 3,173.16, 4,378.87 and 1,756.90

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Solution

The fourth proportional to 3,173.16, 4,378.87 and 1,756.90 is: 2,424.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.16 : 4,378.87 = 1,756.90 : x
  2. Step 2: Convert to fraction form
    3,173.16/4,378.87 = 1,756.90/x
  3. Step 3: Cross multiply
    3,173.16x = 4,378.87 × 1,756.90
  4. Step 4: Simplify right side
    3,173.16x = 7,693,236.70
  5. Step 5: Solve for x
    x = 7,693,236.70/3,173.16
  6. Step 6: Final answer
    x = 2,424.47

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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.