Home / 3,916.84-5,405.44-2,425.56

Finding the Fourth Proportional to 3,916.84, 5,405.44 and 2,425.56

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Solution

The fourth proportional to 3,916.84, 5,405.44 and 2,425.56 is: 3,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.84 : 5,405.44 = 2,425.56 : x
  2. Step 2: Convert to fraction form
    3,916.84/5,405.44 = 2,425.56/x
  3. Step 3: Cross multiply
    3,916.84x = 5,405.44 × 2,425.56
  4. Step 4: Simplify right side
    3,916.84x = 13,111,219.05
  5. Step 5: Solve for x
    x = 13,111,219.05/3,916.84
  6. Step 6: Final answer
    x = 3,347.40

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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.