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Finding the Fourth Proportional to 7,290.63, 10,063.05 and 4,307.55

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Solution

The fourth proportional to 7,290.63, 10,063.05 and 4,307.55 is: 5,945.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,290.63 : 10,063.05 = 4,307.55 : x
  2. Step 2: Convert to fraction form
    7,290.63/10,063.05 = 4,307.55/x
  3. Step 3: Cross multiply
    7,290.63x = 10,063.05 × 4,307.55
  4. Step 4: Simplify right side
    7,290.63x = 43,347,091.03
  5. Step 5: Solve for x
    x = 43,347,091.03/7,290.63
  6. Step 6: Final answer
    x = 5,945.59

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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.