Home / 3,688.14-5,090.75-2,509.89

Finding the Fourth Proportional to 3,688.14, 5,090.75 and 2,509.89

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Solution

The fourth proportional to 3,688.14, 5,090.75 and 2,509.89 is: 3,464.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.14 : 5,090.75 = 2,509.89 : x
  2. Step 2: Convert to fraction form
    3,688.14/5,090.75 = 2,509.89/x
  3. Step 3: Cross multiply
    3,688.14x = 5,090.75 × 2,509.89
  4. Step 4: Simplify right side
    3,688.14x = 12,777,209.97
  5. Step 5: Solve for x
    x = 12,777,209.97/3,688.14
  6. Step 6: Final answer
    x = 3,464.40

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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.