Home / 6,187.20-9,280.80-4,437.60

Finding the Fourth Proportional to 6,187.20, 9,280.80 and 4,437.60

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Solution

The fourth proportional to 6,187.20, 9,280.80 and 4,437.60 is: 6,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,187.20 : 9,280.80 = 4,437.60 : x
  2. Step 2: Convert to fraction form
    6,187.20/9,280.80 = 4,437.60/x
  3. Step 3: Cross multiply
    6,187.20x = 9,280.80 × 4,437.60
  4. Step 4: Simplify right side
    6,187.20x = 41,184,478.08
  5. Step 5: Solve for x
    x = 41,184,478.08/6,187.20
  6. Step 6: Final answer
    x = 6,656.40

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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.