Home / 1,718.24-2,578.16-1,690.59

Finding the Fourth Proportional to 1,718.24, 2,578.16 and 1,690.59

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Solution

The fourth proportional to 1,718.24, 2,578.16 and 1,690.59 is: 2,536.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718.24 : 2,578.16 = 1,690.59 : x
  2. Step 2: Convert to fraction form
    1,718.24/2,578.16 = 1,690.59/x
  3. Step 3: Cross multiply
    1,718.24x = 2,578.16 × 1,690.59
  4. Step 4: Simplify right side
    1,718.24x = 4,358,603.06
  5. Step 5: Solve for x
    x = 4,358,603.06/1,718.24
  6. Step 6: Final answer
    x = 2,536.67

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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.