Home / 7,742.55-10,686.42-5,090.22

Finding the Fourth Proportional to 7,742.55, 10,686.42 and 5,090.22

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Solution

The fourth proportional to 7,742.55, 10,686.42 and 5,090.22 is: 7,025.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.55 : 10,686.42 = 5,090.22 : x
  2. Step 2: Convert to fraction form
    7,742.55/10,686.42 = 5,090.22/x
  3. Step 3: Cross multiply
    7,742.55x = 10,686.42 × 5,090.22
  4. Step 4: Simplify right side
    7,742.55x = 54,396,228.81
  5. Step 5: Solve for x
    x = 54,396,228.81/7,742.55
  6. Step 6: Final answer
    x = 7,025.62

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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.