Home / 3,730.56-5,147.34-2,315.40

Finding the Fourth Proportional to 3,730.56, 5,147.34 and 2,315.40

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Solution

The fourth proportional to 3,730.56, 5,147.34 and 2,315.40 is: 3,194.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.56 : 5,147.34 = 2,315.40 : x
  2. Step 2: Convert to fraction form
    3,730.56/5,147.34 = 2,315.40/x
  3. Step 3: Cross multiply
    3,730.56x = 5,147.34 × 2,315.40
  4. Step 4: Simplify right side
    3,730.56x = 11,918,151.04
  5. Step 5: Solve for x
    x = 11,918,151.04/3,730.56
  6. Step 6: Final answer
    x = 3,194.74

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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.