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Finding the Fourth Proportional to 1,344.32, 1,855.93 and 896.07

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Solution

The fourth proportional to 1,344.32, 1,855.93 and 896.07 is: 1,237.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344.32 : 1,855.93 = 896.07 : x
  2. Step 2: Convert to fraction form
    1,344.32/1,855.93 = 896.07/x
  3. Step 3: Cross multiply
    1,344.32x = 1,855.93 × 896.07
  4. Step 4: Simplify right side
    1,344.32x = 1,663,038.56
  5. Step 5: Solve for x
    x = 1,663,038.56/1,344.32
  6. Step 6: Final answer
    x = 1,237.09

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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.