Home / 2,930.31-4,392.36-1,054.95

Finding the Fourth Proportional to 2,930.31, 4,392.36 and 1,054.95

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Solution

The fourth proportional to 2,930.31, 4,392.36 and 1,054.95 is: 1,581.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.31 : 4,392.36 = 1,054.95 : x
  2. Step 2: Convert to fraction form
    2,930.31/4,392.36 = 1,054.95/x
  3. Step 3: Cross multiply
    2,930.31x = 4,392.36 × 1,054.95
  4. Step 4: Simplify right side
    2,930.31x = 4,633,720.18
  5. Step 5: Solve for x
    x = 4,633,720.18/2,930.31
  6. Step 6: Final answer
    x = 1,581.31

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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.