Home / 4,780.79-7,168.85-1,493.87

Finding the Fourth Proportional to 4,780.79, 7,168.85 and 1,493.87

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Solution

The fourth proportional to 4,780.79, 7,168.85 and 1,493.87 is: 2,240.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.79 : 7,168.85 = 1,493.87 : x
  2. Step 2: Convert to fraction form
    4,780.79/7,168.85 = 1,493.87/x
  3. Step 3: Cross multiply
    4,780.79x = 7,168.85 × 1,493.87
  4. Step 4: Simplify right side
    4,780.79x = 10,709,322.48
  5. Step 5: Solve for x
    x = 10,709,322.48/4,780.79
  6. Step 6: Final answer
    x = 2,240.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.