Home / 2,900.19-4,000.62-1,837.63

Finding the Fourth Proportional to 2,900.19, 4,000.62 and 1,837.63

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Solution

The fourth proportional to 2,900.19, 4,000.62 and 1,837.63 is: 2,534.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.19 : 4,000.62 = 1,837.63 : x
  2. Step 2: Convert to fraction form
    2,900.19/4,000.62 = 1,837.63/x
  3. Step 3: Cross multiply
    2,900.19x = 4,000.62 × 1,837.63
  4. Step 4: Simplify right side
    2,900.19x = 7,351,659.33
  5. Step 5: Solve for x
    x = 7,351,659.33/2,900.19
  6. Step 6: Final answer
    x = 2,534.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.