Home / 3,582.86-5,371.81-1,389.02

Finding the Fourth Proportional to 3,582.86, 5,371.81 and 1,389.02

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Solution

The fourth proportional to 3,582.86, 5,371.81 and 1,389.02 is: 2,082.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,582.86 : 5,371.81 = 1,389.02 : x
  2. Step 2: Convert to fraction form
    3,582.86/5,371.81 = 1,389.02/x
  3. Step 3: Cross multiply
    3,582.86x = 5,371.81 × 1,389.02
  4. Step 4: Simplify right side
    3,582.86x = 7,461,521.19
  5. Step 5: Solve for x
    x = 7,461,521.19/3,582.86
  6. Step 6: Final answer
    x = 2,082.56

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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.