Home / 1,770.21-2,660.72-1,728.63

Finding the Fourth Proportional to 1,770.21, 2,660.72 and 1,728.63

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Solution

The fourth proportional to 1,770.21, 2,660.72 and 1,728.63 is: 2,598.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.21 : 2,660.72 = 1,728.63 : x
  2. Step 2: Convert to fraction form
    1,770.21/2,660.72 = 1,728.63/x
  3. Step 3: Cross multiply
    1,770.21x = 2,660.72 × 1,728.63
  4. Step 4: Simplify right side
    1,770.21x = 4,599,391.77
  5. Step 5: Solve for x
    x = 4,599,391.77/1,770.21
  6. Step 6: Final answer
    x = 2,598.22

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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.