Home / 7,437.15-11,156.09-1,890.54

Finding the Fourth Proportional to 7,437.15, 11,156.09 and 1,890.54

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Solution

The fourth proportional to 7,437.15, 11,156.09 and 1,890.54 is: 2,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,437.15 : 11,156.09 = 1,890.54 : x
  2. Step 2: Convert to fraction form
    7,437.15/11,156.09 = 1,890.54/x
  3. Step 3: Cross multiply
    7,437.15x = 11,156.09 × 1,890.54
  4. Step 4: Simplify right side
    7,437.15x = 21,091,034.39
  5. Step 5: Solve for x
    x = 21,091,034.39/7,437.15
  6. Step 6: Final answer
    x = 2,835.90

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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.