Home / 2,400.60-3,312.66-1,338.21

Finding the Fourth Proportional to 2,400.60, 3,312.66 and 1,338.21

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Solution

The fourth proportional to 2,400.60, 3,312.66 and 1,338.21 is: 1,846.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.60 : 3,312.66 = 1,338.21 : x
  2. Step 2: Convert to fraction form
    2,400.60/3,312.66 = 1,338.21/x
  3. Step 3: Cross multiply
    2,400.60x = 3,312.66 × 1,338.21
  4. Step 4: Simplify right side
    2,400.60x = 4,433,051.53
  5. Step 5: Solve for x
    x = 4,433,051.53/2,400.60
  6. Step 6: Final answer
    x = 1,846.65

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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.