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Finding the Fourth Proportional to 1,715.60, 2,573.34 and 674.85

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Solution

The fourth proportional to 1,715.60, 2,573.34 and 674.85 is: 1,012.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.60 : 2,573.34 = 674.85 : x
  2. Step 2: Convert to fraction form
    1,715.60/2,573.34 = 674.85/x
  3. Step 3: Cross multiply
    1,715.60x = 2,573.34 × 674.85
  4. Step 4: Simplify right side
    1,715.60x = 1,736,618.50
  5. Step 5: Solve for x
    x = 1,736,618.50/1,715.60
  6. Step 6: Final answer
    x = 1,012.25

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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.