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Finding the Fourth Proportional to 1,063.60, 1,467.96 and 670.76

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Solution

The fourth proportional to 1,063.60, 1,467.96 and 670.76 is: 925.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.60 : 1,467.96 = 670.76 : x
  2. Step 2: Convert to fraction form
    1,063.60/1,467.96 = 670.76/x
  3. Step 3: Cross multiply
    1,063.60x = 1,467.96 × 670.76
  4. Step 4: Simplify right side
    1,063.60x = 984,648.85
  5. Step 5: Solve for x
    x = 984,648.85/1,063.60
  6. Step 6: Final answer
    x = 925.77

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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.