Home / 4,047.58-5,582.18-2,790.68

Finding the Fourth Proportional to 4,047.58, 5,582.18 and 2,790.68

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Solution

The fourth proportional to 4,047.58, 5,582.18 and 2,790.68 is: 3,848.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,047.58 : 5,582.18 = 2,790.68 : x
  2. Step 2: Convert to fraction form
    4,047.58/5,582.18 = 2,790.68/x
  3. Step 3: Cross multiply
    4,047.58x = 5,582.18 × 2,790.68
  4. Step 4: Simplify right side
    4,047.58x = 15,578,078.08
  5. Step 5: Solve for x
    x = 15,578,078.08/4,047.58
  6. Step 6: Final answer
    x = 3,848.74

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1.5x scale

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.