Home / 5,618.30-8,424.38-1,722.20

Finding the Fourth Proportional to 5,618.30, 8,424.38 and 1,722.20

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Solution

The fourth proportional to 5,618.30, 8,424.38 and 1,722.20 is: 2,582.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.30 : 8,424.38 = 1,722.20 : x
  2. Step 2: Convert to fraction form
    5,618.30/8,424.38 = 1,722.20/x
  3. Step 3: Cross multiply
    5,618.30x = 8,424.38 × 1,722.20
  4. Step 4: Simplify right side
    5,618.30x = 14,508,429.42
  5. Step 5: Solve for x
    x = 14,508,429.42/5,618.30
  6. Step 6: Final answer
    x = 2,582.35

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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.