Home / 7,137.20-10,707.56-2,457.28

Finding the Fourth Proportional to 7,137.20, 10,707.56 and 2,457.28

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Solution

The fourth proportional to 7,137.20, 10,707.56 and 2,457.28 is: 3,686.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.20 : 10,707.56 = 2,457.28 : x
  2. Step 2: Convert to fraction form
    7,137.20/10,707.56 = 2,457.28/x
  3. Step 3: Cross multiply
    7,137.20x = 10,707.56 × 2,457.28
  4. Step 4: Simplify right side
    7,137.20x = 26,311,473.04
  5. Step 5: Solve for x
    x = 26,311,473.04/7,137.20
  6. Step 6: Final answer
    x = 3,686.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.