Home / 2,930.30-4,393.93-1,081.34

Finding the Fourth Proportional to 2,930.30, 4,393.93 and 1,081.34

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Solution

The fourth proportional to 2,930.30, 4,393.93 and 1,081.34 is: 1,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.30 : 4,393.93 = 1,081.34 : x
  2. Step 2: Convert to fraction form
    2,930.30/4,393.93 = 1,081.34/x
  3. Step 3: Cross multiply
    2,930.30x = 4,393.93 × 1,081.34
  4. Step 4: Simplify right side
    2,930.30x = 4,751,332.27
  5. Step 5: Solve for x
    x = 4,751,332.27/2,930.30
  6. Step 6: Final answer
    x = 1,621.45

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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.