Home / 2,048.16-2,827.20-1,489.60

Finding the Fourth Proportional to 2,048.16, 2,827.20 and 1,489.60

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Solution

The fourth proportional to 2,048.16, 2,827.20 and 1,489.60 is: 2,056.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048.16 : 2,827.20 = 1,489.60 : x
  2. Step 2: Convert to fraction form
    2,048.16/2,827.20 = 1,489.60/x
  3. Step 3: Cross multiply
    2,048.16x = 2,827.20 × 1,489.60
  4. Step 4: Simplify right side
    2,048.16x = 4,211,397.12
  5. Step 5: Solve for x
    x = 4,211,397.12/2,048.16
  6. Step 6: Final answer
    x = 2,056.19

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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.