Home / 5,430.84-8,147.70-1,968.60

Finding the Fourth Proportional to 5,430.84, 8,147.70 and 1,968.60

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Solution

The fourth proportional to 5,430.84, 8,147.70 and 1,968.60 is: 2,953.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.84 : 8,147.70 = 1,968.60 : x
  2. Step 2: Convert to fraction form
    5,430.84/8,147.70 = 1,968.60/x
  3. Step 3: Cross multiply
    5,430.84x = 8,147.70 × 1,968.60
  4. Step 4: Simplify right side
    5,430.84x = 16,039,562.22
  5. Step 5: Solve for x
    x = 16,039,562.22/5,430.84
  6. Step 6: Final answer
    x = 2,953.42

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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.