Home / 5,655.48-8,478.15-2,880.60

Finding the Fourth Proportional to 5,655.48, 8,478.15 and 2,880.60

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Solution

The fourth proportional to 5,655.48, 8,478.15 and 2,880.60 is: 4,318.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,655.48 : 8,478.15 = 2,880.60 : x
  2. Step 2: Convert to fraction form
    5,655.48/8,478.15 = 2,880.60/x
  3. Step 3: Cross multiply
    5,655.48x = 8,478.15 × 2,880.60
  4. Step 4: Simplify right side
    5,655.48x = 24,422,158.89
  5. Step 5: Solve for x
    x = 24,422,158.89/5,655.48
  6. Step 6: Final answer
    x = 4,318.32

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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.