Home / 2,176.08-3,003.47-1,291.83

Finding the Fourth Proportional to 2,176.08, 3,003.47 and 1,291.83

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Solution

The fourth proportional to 2,176.08, 3,003.47 and 1,291.83 is: 1,783.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.08 : 3,003.47 = 1,291.83 : x
  2. Step 2: Convert to fraction form
    2,176.08/3,003.47 = 1,291.83/x
  3. Step 3: Cross multiply
    2,176.08x = 3,003.47 × 1,291.83
  4. Step 4: Simplify right side
    2,176.08x = 3,879,966.19
  5. Step 5: Solve for x
    x = 3,879,966.19/2,176.08
  6. Step 6: Final answer
    x = 1,783.01

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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.