Home / 4,969.64-6,859.38-2,874.98

Finding the Fourth Proportional to 4,969.64, 6,859.38 and 2,874.98

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Solution

The fourth proportional to 4,969.64, 6,859.38 and 2,874.98 is: 3,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969.64 : 6,859.38 = 2,874.98 : x
  2. Step 2: Convert to fraction form
    4,969.64/6,859.38 = 2,874.98/x
  3. Step 3: Cross multiply
    4,969.64x = 6,859.38 × 2,874.98
  4. Step 4: Simplify right side
    4,969.64x = 19,720,580.31
  5. Step 5: Solve for x
    x = 19,720,580.31/4,969.64
  6. Step 6: Final answer
    x = 3,968.21

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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.