Home / 6,912.45-10,366.88-1,980.93

Finding the Fourth Proportional to 6,912.45, 10,366.88 and 1,980.93

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Solution

The fourth proportional to 6,912.45, 10,366.88 and 1,980.93 is: 2,970.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.45 : 10,366.88 = 1,980.93 : x
  2. Step 2: Convert to fraction form
    6,912.45/10,366.88 = 1,980.93/x
  3. Step 3: Cross multiply
    6,912.45x = 10,366.88 × 1,980.93
  4. Step 4: Simplify right side
    6,912.45x = 20,536,068.98
  5. Step 5: Solve for x
    x = 20,536,068.98/6,912.45
  6. Step 6: Final answer
    x = 2,970.88

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1.5x scale

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.