Home / 2,071.10-3,113.40-1,803.80

Finding the Fourth Proportional to 2,071.10, 3,113.40 and 1,803.80

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Solution

The fourth proportional to 2,071.10, 3,113.40 and 1,803.80 is: 2,711.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.10 : 3,113.40 = 1,803.80 : x
  2. Step 2: Convert to fraction form
    2,071.10/3,113.40 = 1,803.80/x
  3. Step 3: Cross multiply
    2,071.10x = 3,113.40 × 1,803.80
  4. Step 4: Simplify right side
    2,071.10x = 5,615,950.92
  5. Step 5: Solve for x
    x = 5,615,950.92/2,071.10
  6. Step 6: Final answer
    x = 2,711.58

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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.