Home / 1,895.20-2,838.68-919.26

Finding the Fourth Proportional to 1,895.20, 2,838.68 and 919.26

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Solution

The fourth proportional to 1,895.20, 2,838.68 and 919.26 is: 1,376.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.20 : 2,838.68 = 919.26 : x
  2. Step 2: Convert to fraction form
    1,895.20/2,838.68 = 919.26/x
  3. Step 3: Cross multiply
    1,895.20x = 2,838.68 × 919.26
  4. Step 4: Simplify right side
    1,895.20x = 2,609,484.98
  5. Step 5: Solve for x
    x = 2,609,484.98/1,895.20
  6. Step 6: Final answer
    x = 1,376.89

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1.5x scale

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.