Home / 2,970.36-4,449.86-1,800.72

Finding the Fourth Proportional to 2,970.36, 4,449.86 and 1,800.72

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Solution

The fourth proportional to 2,970.36, 4,449.86 and 1,800.72 is: 2,697.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.36 : 4,449.86 = 1,800.72 : x
  2. Step 2: Convert to fraction form
    2,970.36/4,449.86 = 1,800.72/x
  3. Step 3: Cross multiply
    2,970.36x = 4,449.86 × 1,800.72
  4. Step 4: Simplify right side
    2,970.36x = 8,012,951.90
  5. Step 5: Solve for x
    x = 8,012,951.90/2,970.36
  6. Step 6: Final answer
    x = 2,697.64

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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.