Home / 1,651.16-2,471.88-919.74

Finding the Fourth Proportional to 1,651.16, 2,471.88 and 919.74

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Solution

The fourth proportional to 1,651.16, 2,471.88 and 919.74 is: 1,376.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,651.16 : 2,471.88 = 919.74 : x
  2. Step 2: Convert to fraction form
    1,651.16/2,471.88 = 919.74/x
  3. Step 3: Cross multiply
    1,651.16x = 2,471.88 × 919.74
  4. Step 4: Simplify right side
    1,651.16x = 2,273,486.91
  5. Step 5: Solve for x
    x = 2,273,486.91/1,651.16
  6. Step 6: Final answer
    x = 1,376.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.