Home / 3,457.78-5,188.47-2,641.30

Finding the Fourth Proportional to 3,457.78, 5,188.47 and 2,641.30

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Solution

The fourth proportional to 3,457.78, 5,188.47 and 2,641.30 is: 3,963.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.78 : 5,188.47 = 2,641.30 : x
  2. Step 2: Convert to fraction form
    3,457.78/5,188.47 = 2,641.30/x
  3. Step 3: Cross multiply
    3,457.78x = 5,188.47 × 2,641.30
  4. Step 4: Simplify right side
    3,457.78x = 13,704,305.81
  5. Step 5: Solve for x
    x = 13,704,305.81/3,457.78
  6. Step 6: Final answer
    x = 3,963.32

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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.