Home / 2,900.21-4,002.86-1,641.27

Finding the Fourth Proportional to 2,900.21, 4,002.86 and 1,641.27

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Solution

The fourth proportional to 2,900.21, 4,002.86 and 1,641.27 is: 2,265.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.21 : 4,002.86 = 1,641.27 : x
  2. Step 2: Convert to fraction form
    2,900.21/4,002.86 = 1,641.27/x
  3. Step 3: Cross multiply
    2,900.21x = 4,002.86 × 1,641.27
  4. Step 4: Simplify right side
    2,900.21x = 6,569,774.03
  5. Step 5: Solve for x
    x = 6,569,774.03/2,900.21
  6. Step 6: Final answer
    x = 2,265.28

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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.