Home / 7,897.10-11,835.38-3,211.65

Finding the Fourth Proportional to 7,897.10, 11,835.38 and 3,211.65

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Solution

The fourth proportional to 7,897.10, 11,835.38 and 3,211.65 is: 4,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897.10 : 11,835.38 = 3,211.65 : x
  2. Step 2: Convert to fraction form
    7,897.10/11,835.38 = 3,211.65/x
  3. Step 3: Cross multiply
    7,897.10x = 11,835.38 × 3,211.65
  4. Step 4: Simplify right side
    7,897.10x = 38,011,106.21
  5. Step 5: Solve for x
    x = 38,011,106.21/7,897.10
  6. Step 6: Final answer
    x = 4,813.30

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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.