Home / 3,113.20-4,666.20-1,263.40

Finding the Fourth Proportional to 3,113.20, 4,666.20 and 1,263.40

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Solution

The fourth proportional to 3,113.20, 4,666.20 and 1,263.40 is: 1,893.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.20 : 4,666.20 = 1,263.40 : x
  2. Step 2: Convert to fraction form
    3,113.20/4,666.20 = 1,263.40/x
  3. Step 3: Cross multiply
    3,113.20x = 4,666.20 × 1,263.40
  4. Step 4: Simplify right side
    3,113.20x = 5,895,277.08
  5. Step 5: Solve for x
    x = 5,895,277.08/3,113.20
  6. Step 6: Final answer
    x = 1,893.64

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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.