Home / 5,022.30-6,930.81-2,784.21

Finding the Fourth Proportional to 5,022.30, 6,930.81 and 2,784.21

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Solution

The fourth proportional to 5,022.30, 6,930.81 and 2,784.21 is: 3,842.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,022.30 : 6,930.81 = 2,784.21 : x
  2. Step 2: Convert to fraction form
    5,022.30/6,930.81 = 2,784.21/x
  3. Step 3: Cross multiply
    5,022.30x = 6,930.81 × 2,784.21
  4. Step 4: Simplify right side
    5,022.30x = 19,296,830.51
  5. Step 5: Solve for x
    x = 19,296,830.51/5,022.30
  6. Step 6: Final answer
    x = 3,842.23

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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.