Home / 3,107.79-4,661.69-2,130.93

Finding the Fourth Proportional to 3,107.79, 4,661.69 and 2,130.93

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Solution

The fourth proportional to 3,107.79, 4,661.69 and 2,130.93 is: 3,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.79 : 4,661.69 = 2,130.93 : x
  2. Step 2: Convert to fraction form
    3,107.79/4,661.69 = 2,130.93/x
  3. Step 3: Cross multiply
    3,107.79x = 4,661.69 × 2,130.93
  4. Step 4: Simplify right side
    3,107.79x = 9,933,724.42
  5. Step 5: Solve for x
    x = 9,933,724.42/3,107.79
  6. Step 6: Final answer
    x = 3,196.40

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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.