Home / 3,113.50-4,296.63-1,871.50

Finding the Fourth Proportional to 3,113.50, 4,296.63 and 1,871.50

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Solution

The fourth proportional to 3,113.50, 4,296.63 and 1,871.50 is: 2,582.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.50 : 4,296.63 = 1,871.50 : x
  2. Step 2: Convert to fraction form
    3,113.50/4,296.63 = 1,871.50/x
  3. Step 3: Cross multiply
    3,113.50x = 4,296.63 × 1,871.50
  4. Step 4: Simplify right side
    3,113.50x = 8,041,143.05
  5. Step 5: Solve for x
    x = 8,041,143.05/3,113.50
  6. Step 6: Final answer
    x = 2,582.67

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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.