Home / 3,140.12-4,703.70-2,161.64

Finding the Fourth Proportional to 3,140.12, 4,703.70 and 2,161.64

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Solution

The fourth proportional to 3,140.12, 4,703.70 and 2,161.64 is: 3,238.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.12 : 4,703.70 = 2,161.64 : x
  2. Step 2: Convert to fraction form
    3,140.12/4,703.70 = 2,161.64/x
  3. Step 3: Cross multiply
    3,140.12x = 4,703.70 × 2,161.64
  4. Step 4: Simplify right side
    3,140.12x = 10,167,706.07
  5. Step 5: Solve for x
    x = 10,167,706.07/3,140.12
  6. Step 6: Final answer
    x = 3,238.00

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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.