Home / 7,720.48-10,654.23-4,183.60

Finding the Fourth Proportional to 7,720.48, 10,654.23 and 4,183.60

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Solution

The fourth proportional to 7,720.48, 10,654.23 and 4,183.60 is: 5,773.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.48 : 10,654.23 = 4,183.60 : x
  2. Step 2: Convert to fraction form
    7,720.48/10,654.23 = 4,183.60/x
  3. Step 3: Cross multiply
    7,720.48x = 10,654.23 × 4,183.60
  4. Step 4: Simplify right side
    7,720.48x = 44,573,036.63
  5. Step 5: Solve for x
    x = 44,573,036.63/7,720.48
  6. Step 6: Final answer
    x = 5,773.35

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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.