Home / 3,582.29-5,370.32-1,389.45

Finding the Fourth Proportional to 3,582.29, 5,370.32 and 1,389.45

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Solution

The fourth proportional to 3,582.29, 5,370.32 and 1,389.45 is: 2,082.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,582.29 : 5,370.32 = 1,389.45 : x
  2. Step 2: Convert to fraction form
    3,582.29/5,370.32 = 1,389.45/x
  3. Step 3: Cross multiply
    3,582.29x = 5,370.32 × 1,389.45
  4. Step 4: Simplify right side
    3,582.29x = 7,461,806.92
  5. Step 5: Solve for x
    x = 7,461,806.92/3,582.29
  6. Step 6: Final answer
    x = 2,082.97

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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.