Home / 2,927.88-4,039.20-1,865.08

Finding the Fourth Proportional to 2,927.88, 4,039.20 and 1,865.08

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Solution

The fourth proportional to 2,927.88, 4,039.20 and 1,865.08 is: 2,573.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.88 : 4,039.20 = 1,865.08 : x
  2. Step 2: Convert to fraction form
    2,927.88/4,039.20 = 1,865.08/x
  3. Step 3: Cross multiply
    2,927.88x = 4,039.20 × 1,865.08
  4. Step 4: Simplify right side
    2,927.88x = 7,533,431.14
  5. Step 5: Solve for x
    x = 7,533,431.14/2,927.88
  6. Step 6: Final answer
    x = 2,573.00

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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.