Home / 2,376.99-3,280.19-1,382.45

Finding the Fourth Proportional to 2,376.99, 3,280.19 and 1,382.45

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Solution

The fourth proportional to 2,376.99, 3,280.19 and 1,382.45 is: 1,907.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.99 : 3,280.19 = 1,382.45 : x
  2. Step 2: Convert to fraction form
    2,376.99/3,280.19 = 1,382.45/x
  3. Step 3: Cross multiply
    2,376.99x = 3,280.19 × 1,382.45
  4. Step 4: Simplify right side
    2,376.99x = 4,534,675.35
  5. Step 5: Solve for x
    x = 4,534,675.35/2,376.99
  6. Step 6: Final answer
    x = 1,907.74

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Half scale
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Double scale
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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.