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Finding the Fourth Proportional to 7,323.80, 10,985.70 and 2,393.60

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Solution

The fourth proportional to 7,323.80, 10,985.70 and 2,393.60 is: 3,590.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,323.80 : 10,985.70 = 2,393.60 : x
  2. Step 2: Convert to fraction form
    7,323.80/10,985.70 = 2,393.60/x
  3. Step 3: Cross multiply
    7,323.80x = 10,985.70 × 2,393.60
  4. Step 4: Simplify right side
    7,323.80x = 26,295,371.52
  5. Step 5: Solve for x
    x = 26,295,371.52/7,323.80
  6. Step 6: Final answer
    x = 3,590.40

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Similar ratio
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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.