Home / 4,956.78-6,840.40-2,718.68

Finding the Fourth Proportional to 4,956.78, 6,840.40 and 2,718.68

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Solution

The fourth proportional to 4,956.78, 6,840.40 and 2,718.68 is: 3,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,956.78 : 6,840.40 = 2,718.68 : x
  2. Step 2: Convert to fraction form
    4,956.78/6,840.40 = 2,718.68/x
  3. Step 3: Cross multiply
    4,956.78x = 6,840.40 × 2,718.68
  4. Step 4: Simplify right side
    4,956.78x = 18,596,858.67
  5. Step 5: Solve for x
    x = 18,596,858.67/4,956.78
  6. Step 6: Final answer
    x = 3,751.80

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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.