Home / 5,478.43-7,563.77-4,887.94

Finding the Fourth Proportional to 5,478.43, 7,563.77 and 4,887.94

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Solution

The fourth proportional to 5,478.43, 7,563.77 and 4,887.94 is: 6,748.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.43 : 7,563.77 = 4,887.94 : x
  2. Step 2: Convert to fraction form
    5,478.43/7,563.77 = 4,887.94/x
  3. Step 3: Cross multiply
    5,478.43x = 7,563.77 × 4,887.94
  4. Step 4: Simplify right side
    5,478.43x = 36,971,253.93
  5. Step 5: Solve for x
    x = 36,971,253.93/5,478.43
  6. Step 6: Final answer
    x = 6,748.51

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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.