Home / 7,437.42-11,156.54-1,890.79

Finding the Fourth Proportional to 7,437.42, 11,156.54 and 1,890.79

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Solution

The fourth proportional to 7,437.42, 11,156.54 and 1,890.79 is: 2,836.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,437.42 : 11,156.54 = 1,890.79 : x
  2. Step 2: Convert to fraction form
    7,437.42/11,156.54 = 1,890.79/x
  3. Step 3: Cross multiply
    7,437.42x = 11,156.54 × 1,890.79
  4. Step 4: Simplify right side
    7,437.42x = 21,094,699.68
  5. Step 5: Solve for x
    x = 21,094,699.68/7,437.42
  6. Step 6: Final answer
    x = 2,836.29

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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.