Home / 2,393.75-3,303.38-1,398.85

Finding the Fourth Proportional to 2,393.75, 3,303.38 and 1,398.85

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Solution

The fourth proportional to 2,393.75, 3,303.38 and 1,398.85 is: 1,930.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,393.75 : 3,303.38 = 1,398.85 : x
  2. Step 2: Convert to fraction form
    2,393.75/3,303.38 = 1,398.85/x
  3. Step 3: Cross multiply
    2,393.75x = 3,303.38 × 1,398.85
  4. Step 4: Simplify right side
    2,393.75x = 4,620,928.35
  5. Step 5: Solve for x
    x = 4,620,928.35/2,393.75
  6. Step 6: Final answer
    x = 1,930.41

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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.