Home / 2,340.36-3,230.16-2,153.55

Finding the Fourth Proportional to 2,340.36, 3,230.16 and 2,153.55

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Solution

The fourth proportional to 2,340.36, 3,230.16 and 2,153.55 is: 2,972.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.36 : 3,230.16 = 2,153.55 : x
  2. Step 2: Convert to fraction form
    2,340.36/3,230.16 = 2,153.55/x
  3. Step 3: Cross multiply
    2,340.36x = 3,230.16 × 2,153.55
  4. Step 4: Simplify right side
    2,340.36x = 6,956,311.07
  5. Step 5: Solve for x
    x = 6,956,311.07/2,340.36
  6. Step 6: Final answer
    x = 2,972.33

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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.