Home / 4,956.79-6,840.38-2,860.91

Finding the Fourth Proportional to 4,956.79, 6,840.38 and 2,860.91

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Solution

The fourth proportional to 4,956.79, 6,840.38 and 2,860.91 is: 3,948.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,956.79 : 6,840.38 = 2,860.91 : x
  2. Step 2: Convert to fraction form
    4,956.79/6,840.38 = 2,860.91/x
  3. Step 3: Cross multiply
    4,956.79x = 6,840.38 × 2,860.91
  4. Step 4: Simplify right side
    4,956.79x = 19,569,697.24
  5. Step 5: Solve for x
    x = 19,569,697.24/4,956.79
  6. Step 6: Final answer
    x = 3,948.06

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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.