Home / 3,913.02-5,400.14-2,340.81

Finding the Fourth Proportional to 3,913.02, 5,400.14 and 2,340.81

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Solution

The fourth proportional to 3,913.02, 5,400.14 and 2,340.81 is: 3,230.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.02 : 5,400.14 = 2,340.81 : x
  2. Step 2: Convert to fraction form
    3,913.02/5,400.14 = 2,340.81/x
  3. Step 3: Cross multiply
    3,913.02x = 5,400.14 × 2,340.81
  4. Step 4: Simplify right side
    3,913.02x = 12,640,690.01
  5. Step 5: Solve for x
    x = 12,640,690.01/3,913.02
  6. Step 6: Final answer
    x = 3,230.42

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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.