Home / 5,287.83-7,280.58-4,489.48

Finding the Fourth Proportional to 5,287.83, 7,280.58 and 4,489.48

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Solution

The fourth proportional to 5,287.83, 7,280.58 and 4,489.48 is: 6,181.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.83 : 7,280.58 = 4,489.48 : x
  2. Step 2: Convert to fraction form
    5,287.83/7,280.58 = 4,489.48/x
  3. Step 3: Cross multiply
    5,287.83x = 7,280.58 × 4,489.48
  4. Step 4: Simplify right side
    5,287.83x = 32,686,003.28
  5. Step 5: Solve for x
    x = 32,686,003.28/5,287.83
  6. Step 6: Final answer
    x = 6,181.36

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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.