Home / 3,582.74-5,370.90-1,390.94

Finding the Fourth Proportional to 3,582.74, 5,370.90 and 1,390.94

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Solution

The fourth proportional to 3,582.74, 5,370.90 and 1,390.94 is: 2,085.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,582.74 : 5,370.90 = 1,390.94 : x
  2. Step 2: Convert to fraction form
    3,582.74/5,370.90 = 1,390.94/x
  3. Step 3: Cross multiply
    3,582.74x = 5,370.90 × 1,390.94
  4. Step 4: Simplify right side
    3,582.74x = 7,470,607.86
  5. Step 5: Solve for x
    x = 7,470,607.86/3,582.74
  6. Step 6: Final answer
    x = 2,085.17

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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.