Home / 7,827.64-10,801.73-4,290.78

Finding the Fourth Proportional to 7,827.64, 10,801.73 and 4,290.78

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Solution

The fourth proportional to 7,827.64, 10,801.73 and 4,290.78 is: 5,921.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,827.64 : 10,801.73 = 4,290.78 : x
  2. Step 2: Convert to fraction form
    7,827.64/10,801.73 = 4,290.78/x
  3. Step 3: Cross multiply
    7,827.64x = 10,801.73 × 4,290.78
  4. Step 4: Simplify right side
    7,827.64x = 46,347,847.05
  5. Step 5: Solve for x
    x = 46,347,847.05/7,827.64
  6. Step 6: Final answer
    x = 5,921.05

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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.