Home / 7,835.10-11,752.74-2,640.96

Finding the Fourth Proportional to 7,835.10, 11,752.74 and 2,640.96

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Solution

The fourth proportional to 7,835.10, 11,752.74 and 2,640.96 is: 3,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835.10 : 11,752.74 = 2,640.96 : x
  2. Step 2: Convert to fraction form
    7,835.10/11,752.74 = 2,640.96/x
  3. Step 3: Cross multiply
    7,835.10x = 11,752.74 × 2,640.96
  4. Step 4: Simplify right side
    7,835.10x = 31,038,516.23
  5. Step 5: Solve for x
    x = 31,038,516.23/7,835.10
  6. Step 6: Final answer
    x = 3,961.47

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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.