Home / 7,176.48-10,762.92-5,090.40

Finding the Fourth Proportional to 7,176.48, 10,762.92 and 5,090.40

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Solution

The fourth proportional to 7,176.48, 10,762.92 and 5,090.40 is: 7,634.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.48 : 10,762.92 = 5,090.40 : x
  2. Step 2: Convert to fraction form
    7,176.48/10,762.92 = 5,090.40/x
  3. Step 3: Cross multiply
    7,176.48x = 10,762.92 × 5,090.40
  4. Step 4: Simplify right side
    7,176.48x = 54,787,567.97
  5. Step 5: Solve for x
    x = 54,787,567.97/7,176.48
  6. Step 6: Final answer
    x = 7,634.32

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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.