Home / 1,858.16-2,782.83-1,613.35

Finding the Fourth Proportional to 1,858.16, 2,782.83 and 1,613.35

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Solution

The fourth proportional to 1,858.16, 2,782.83 and 1,613.35 is: 2,416.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858.16 : 2,782.83 = 1,613.35 : x
  2. Step 2: Convert to fraction form
    1,858.16/2,782.83 = 1,613.35/x
  3. Step 3: Cross multiply
    1,858.16x = 2,782.83 × 1,613.35
  4. Step 4: Simplify right side
    1,858.16x = 4,489,678.78
  5. Step 5: Solve for x
    x = 4,489,678.78/1,858.16
  6. Step 6: Final answer
    x = 2,416.20

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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.