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Finding the Fourth Proportional to 3,582.76, 5,368.38 and 2,816.68

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Solution

The fourth proportional to 3,582.76, 5,368.38 and 2,816.68 is: 4,220.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,582.76 : 5,368.38 = 2,816.68 : x
  2. Step 2: Convert to fraction form
    3,582.76/5,368.38 = 2,816.68/x
  3. Step 3: Cross multiply
    3,582.76x = 5,368.38 × 2,816.68
  4. Step 4: Simplify right side
    3,582.76x = 15,121,008.58
  5. Step 5: Solve for x
    x = 15,121,008.58/3,582.76
  6. Step 6: Final answer
    x = 4,220.49

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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.