Home / 3,101.76-4,653.81-1,870.02

Finding the Fourth Proportional to 3,101.76, 4,653.81 and 1,870.02

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Solution

The fourth proportional to 3,101.76, 4,653.81 and 1,870.02 is: 2,805.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.76 : 4,653.81 = 1,870.02 : x
  2. Step 2: Convert to fraction form
    3,101.76/4,653.81 = 1,870.02/x
  3. Step 3: Cross multiply
    3,101.76x = 4,653.81 × 1,870.02
  4. Step 4: Simplify right side
    3,101.76x = 8,702,717.78
  5. Step 5: Solve for x
    x = 8,702,717.78/3,101.76
  6. Step 6: Final answer
    x = 2,805.74

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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.