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Finding the Fourth Proportional to 1,767.60, 2,664.63 and 1,648.67

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Solution

The fourth proportional to 1,767.60, 2,664.63 and 1,648.67 is: 2,485.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.60 : 2,664.63 = 1,648.67 : x
  2. Step 2: Convert to fraction form
    1,767.60/2,664.63 = 1,648.67/x
  3. Step 3: Cross multiply
    1,767.60x = 2,664.63 × 1,648.67
  4. Step 4: Simplify right side
    1,767.60x = 4,393,082.22
  5. Step 5: Solve for x
    x = 4,393,082.22/1,767.60
  6. Step 6: Final answer
    x = 2,485.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.