Home / 7,858.14-10,840.52-4,872.89

Finding the Fourth Proportional to 7,858.14, 10,840.52 and 4,872.89

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Solution

The fourth proportional to 7,858.14, 10,840.52 and 4,872.89 is: 6,722.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858.14 : 10,840.52 = 4,872.89 : x
  2. Step 2: Convert to fraction form
    7,858.14/10,840.52 = 4,872.89/x
  3. Step 3: Cross multiply
    7,858.14x = 10,840.52 × 4,872.89
  4. Step 4: Simplify right side
    7,858.14x = 52,824,582.94
  5. Step 5: Solve for x
    x = 52,824,582.94/7,858.14
  6. Step 6: Final answer
    x = 6,722.28

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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.