Home / 2,920.22-4,031.37-1,859.05

Finding the Fourth Proportional to 2,920.22, 4,031.37 and 1,859.05

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Solution

The fourth proportional to 2,920.22, 4,031.37 and 1,859.05 is: 2,566.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.22 : 4,031.37 = 1,859.05 : x
  2. Step 2: Convert to fraction form
    2,920.22/4,031.37 = 1,859.05/x
  3. Step 3: Cross multiply
    2,920.22x = 4,031.37 × 1,859.05
  4. Step 4: Simplify right side
    2,920.22x = 7,494,488.95
  5. Step 5: Solve for x
    x = 7,494,488.95/2,920.22
  6. Step 6: Final answer
    x = 2,566.42

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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.