Home / 2,378.15-3,281.29-1,382.83

Finding the Fourth Proportional to 2,378.15, 3,281.29 and 1,382.83

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Solution

The fourth proportional to 2,378.15, 3,281.29 and 1,382.83 is: 1,907.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.15 : 3,281.29 = 1,382.83 : x
  2. Step 2: Convert to fraction form
    2,378.15/3,281.29 = 1,382.83/x
  3. Step 3: Cross multiply
    2,378.15x = 3,281.29 × 1,382.83
  4. Step 4: Simplify right side
    2,378.15x = 4,537,466.25
  5. Step 5: Solve for x
    x = 4,537,466.25/2,378.15
  6. Step 6: Final answer
    x = 1,907.98

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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.