Home / 3,876.30-5,347.35-2,457.54

Finding the Fourth Proportional to 3,876.30, 5,347.35 and 2,457.54

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Solution

The fourth proportional to 3,876.30, 5,347.35 and 2,457.54 is: 3,390.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.30 : 5,347.35 = 2,457.54 : x
  2. Step 2: Convert to fraction form
    3,876.30/5,347.35 = 2,457.54/x
  3. Step 3: Cross multiply
    3,876.30x = 5,347.35 × 2,457.54
  4. Step 4: Simplify right side
    3,876.30x = 13,141,326.52
  5. Step 5: Solve for x
    x = 13,141,326.52/3,876.30
  6. Step 6: Final answer
    x = 3,390.17

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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.