Home / 1,679.60-2,516.58-1,028.98

Finding the Fourth Proportional to 1,679.60, 2,516.58 and 1,028.98

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Solution

The fourth proportional to 1,679.60, 2,516.58 and 1,028.98 is: 1,541.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.60 : 2,516.58 = 1,028.98 : x
  2. Step 2: Convert to fraction form
    1,679.60/2,516.58 = 1,028.98/x
  3. Step 3: Cross multiply
    1,679.60x = 2,516.58 × 1,028.98
  4. Step 4: Simplify right side
    1,679.60x = 2,589,510.49
  5. Step 5: Solve for x
    x = 2,589,510.49/1,679.60
  6. Step 6: Final answer
    x = 1,541.74

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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.