Home / 2,440.86-3,368.44-1,393.02

Finding the Fourth Proportional to 2,440.86, 3,368.44 and 1,393.02

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Solution

The fourth proportional to 2,440.86, 3,368.44 and 1,393.02 is: 1,922.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.86 : 3,368.44 = 1,393.02 : x
  2. Step 2: Convert to fraction form
    2,440.86/3,368.44 = 1,393.02/x
  3. Step 3: Cross multiply
    2,440.86x = 3,368.44 × 1,393.02
  4. Step 4: Simplify right side
    2,440.86x = 4,692,283.96
  5. Step 5: Solve for x
    x = 4,692,283.96/2,440.86
  6. Step 6: Final answer
    x = 1,922.39

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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.