Home / 5,445.80-7,515.60-3,056.05

Finding the Fourth Proportional to 5,445.80, 7,515.60 and 3,056.05

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Solution

The fourth proportional to 5,445.80, 7,515.60 and 3,056.05 is: 4,217.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.80 : 7,515.60 = 3,056.05 : x
  2. Step 2: Convert to fraction form
    5,445.80/7,515.60 = 3,056.05/x
  3. Step 3: Cross multiply
    5,445.80x = 7,515.60 × 3,056.05
  4. Step 4: Simplify right side
    5,445.80x = 22,968,011.80
  5. Step 5: Solve for x
    x = 22,968,011.80/5,445.80
  6. Step 6: Final answer
    x = 4,217.57

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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.