Home / 2,112.48-2,913.45-1,582.61

Finding the Fourth Proportional to 2,112.48, 2,913.45 and 1,582.61

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Solution

The fourth proportional to 2,112.48, 2,913.45 and 1,582.61 is: 2,182.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.48 : 2,913.45 = 1,582.61 : x
  2. Step 2: Convert to fraction form
    2,112.48/2,913.45 = 1,582.61/x
  3. Step 3: Cross multiply
    2,112.48x = 2,913.45 × 1,582.61
  4. Step 4: Simplify right side
    2,112.48x = 4,610,836.83
  5. Step 5: Solve for x
    x = 4,610,836.83/2,112.48
  6. Step 6: Final answer
    x = 2,182.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.