Home / 4,089.90-6,122.70-2,445.60

Finding the Fourth Proportional to 4,089.90, 6,122.70 and 2,445.60

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Solution

The fourth proportional to 4,089.90, 6,122.70 and 2,445.60 is: 3,661.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.90 : 6,122.70 = 2,445.60 : x
  2. Step 2: Convert to fraction form
    4,089.90/6,122.70 = 2,445.60/x
  3. Step 3: Cross multiply
    4,089.90x = 6,122.70 × 2,445.60
  4. Step 4: Simplify right side
    4,089.90x = 14,973,675.12
  5. Step 5: Solve for x
    x = 14,973,675.12/4,089.90
  6. Step 6: Final answer
    x = 3,661.13

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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.