Home / 2,378.53-3,281.57-1,382.99

Finding the Fourth Proportional to 2,378.53, 3,281.57 and 1,382.99

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Solution

The fourth proportional to 2,378.53, 3,281.57 and 1,382.99 is: 1,908.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.53 : 3,281.57 = 1,382.99 : x
  2. Step 2: Convert to fraction form
    2,378.53/3,281.57 = 1,382.99/x
  3. Step 3: Cross multiply
    2,378.53x = 3,281.57 × 1,382.99
  4. Step 4: Simplify right side
    2,378.53x = 4,538,390.16
  5. Step 5: Solve for x
    x = 4,538,390.16/2,378.53
  6. Step 6: Final answer
    x = 1,908.06

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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.