Home / 1,717.72-2,576.64-1,690.24

Finding the Fourth Proportional to 1,717.72, 2,576.64 and 1,690.24

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Solution

The fourth proportional to 1,717.72, 2,576.64 and 1,690.24 is: 2,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.72 : 2,576.64 = 1,690.24 : x
  2. Step 2: Convert to fraction form
    1,717.72/2,576.64 = 1,690.24/x
  3. Step 3: Cross multiply
    1,717.72x = 2,576.64 × 1,690.24
  4. Step 4: Simplify right side
    1,717.72x = 4,355,139.99
  5. Step 5: Solve for x
    x = 4,355,139.99/1,717.72
  6. Step 6: Final answer
    x = 2,535.42

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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.