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Finding the Fourth Proportional to 5,810.64, 8,021.75 and 4,913.97

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Solution

The fourth proportional to 5,810.64, 8,021.75 and 4,913.97 is: 6,783.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.64 : 8,021.75 = 4,913.97 : x
  2. Step 2: Convert to fraction form
    5,810.64/8,021.75 = 4,913.97/x
  3. Step 3: Cross multiply
    5,810.64x = 8,021.75 × 4,913.97
  4. Step 4: Simplify right side
    5,810.64x = 39,418,614.28
  5. Step 5: Solve for x
    x = 39,418,614.28/5,810.64
  6. Step 6: Final answer
    x = 6,783.87

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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.