Home / 7,378.53-10,181.47-4,190.69

Finding the Fourth Proportional to 7,378.53, 10,181.47 and 4,190.69

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Solution

The fourth proportional to 7,378.53, 10,181.47 and 4,190.69 is: 5,782.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.53 : 10,181.47 = 4,190.69 : x
  2. Step 2: Convert to fraction form
    7,378.53/10,181.47 = 4,190.69/x
  3. Step 3: Cross multiply
    7,378.53x = 10,181.47 × 4,190.69
  4. Step 4: Simplify right side
    7,378.53x = 42,667,384.51
  5. Step 5: Solve for x
    x = 42,667,384.51/7,378.53
  6. Step 6: Final answer
    x = 5,782.64

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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.