Home / 3,891.08-5,368.74-2,495.72

Finding the Fourth Proportional to 3,891.08, 5,368.74 and 2,495.72

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Solution

The fourth proportional to 3,891.08, 5,368.74 and 2,495.72 is: 3,443.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.08 : 5,368.74 = 2,495.72 : x
  2. Step 2: Convert to fraction form
    3,891.08/5,368.74 = 2,495.72/x
  3. Step 3: Cross multiply
    3,891.08x = 5,368.74 × 2,495.72
  4. Step 4: Simplify right side
    3,891.08x = 13,398,871.79
  5. Step 5: Solve for x
    x = 13,398,871.79/3,891.08
  6. Step 6: Final answer
    x = 3,443.48

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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.