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Finding the Fourth Proportional to 1,715.32, 2,573.22 and 893.68

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Solution

The fourth proportional to 1,715.32, 2,573.22 and 893.68 is: 1,340.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.32 : 2,573.22 = 893.68 : x
  2. Step 2: Convert to fraction form
    1,715.32/2,573.22 = 893.68/x
  3. Step 3: Cross multiply
    1,715.32x = 2,573.22 × 893.68
  4. Step 4: Simplify right side
    1,715.32x = 2,299,635.25
  5. Step 5: Solve for x
    x = 2,299,635.25/1,715.32
  6. Step 6: Final answer
    x = 1,340.65

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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.