Home / 4,290.50-6,430.31-1,822.42

Finding the Fourth Proportional to 4,290.50, 6,430.31 and 1,822.42

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Solution

The fourth proportional to 4,290.50, 6,430.31 and 1,822.42 is: 2,731.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.50 : 6,430.31 = 1,822.42 : x
  2. Step 2: Convert to fraction form
    4,290.50/6,430.31 = 1,822.42/x
  3. Step 3: Cross multiply
    4,290.50x = 6,430.31 × 1,822.42
  4. Step 4: Simplify right side
    4,290.50x = 11,718,725.55
  5. Step 5: Solve for x
    x = 11,718,725.55/4,290.50
  6. Step 6: Final answer
    x = 2,731.32

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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.