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Finding the Fourth Proportional to 1,623.64, 2,434.38 and 893.56

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Solution

The fourth proportional to 1,623.64, 2,434.38 and 893.56 is: 1,339.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.64 : 2,434.38 = 893.56 : x
  2. Step 2: Convert to fraction form
    1,623.64/2,434.38 = 893.56/x
  3. Step 3: Cross multiply
    1,623.64x = 2,434.38 × 893.56
  4. Step 4: Simplify right side
    1,623.64x = 2,175,264.59
  5. Step 5: Solve for x
    x = 2,175,264.59/1,623.64
  6. Step 6: Final answer
    x = 1,339.75

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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.