Home / 3,140.79-4,333.55-2,022.09

Finding the Fourth Proportional to 3,140.79, 4,333.55 and 2,022.09

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Solution

The fourth proportional to 3,140.79, 4,333.55 and 2,022.09 is: 2,790.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.79 : 4,333.55 = 2,022.09 : x
  2. Step 2: Convert to fraction form
    3,140.79/4,333.55 = 2,022.09/x
  3. Step 3: Cross multiply
    3,140.79x = 4,333.55 × 2,022.09
  4. Step 4: Simplify right side
    3,140.79x = 8,762,818.01
  5. Step 5: Solve for x
    x = 8,762,818.01/3,140.79
  6. Step 6: Final answer
    x = 2,790.00

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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.