Home / 3,916.42-5,405.34-2,345.43

Finding the Fourth Proportional to 3,916.42, 5,405.34 and 2,345.43

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Solution

The fourth proportional to 3,916.42, 5,405.34 and 2,345.43 is: 3,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.42 : 5,405.34 = 2,345.43 : x
  2. Step 2: Convert to fraction form
    3,916.42/5,405.34 = 2,345.43/x
  3. Step 3: Cross multiply
    3,916.42x = 5,405.34 × 2,345.43
  4. Step 4: Simplify right side
    3,916.42x = 12,677,846.60
  5. Step 5: Solve for x
    x = 12,677,846.60/3,916.42
  6. Step 6: Final answer
    x = 3,237.10

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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.