Home / 5,407.65-8,107.47-2,119.05

Finding the Fourth Proportional to 5,407.65, 8,107.47 and 2,119.05

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Solution

The fourth proportional to 5,407.65, 8,107.47 and 2,119.05 is: 3,177.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.65 : 8,107.47 = 2,119.05 : x
  2. Step 2: Convert to fraction form
    5,407.65/8,107.47 = 2,119.05/x
  3. Step 3: Cross multiply
    5,407.65x = 8,107.47 × 2,119.05
  4. Step 4: Simplify right side
    5,407.65x = 17,180,134.30
  5. Step 5: Solve for x
    x = 17,180,134.30/5,407.65
  6. Step 6: Final answer
    x = 3,177.01

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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.