Home / 7,897.21-11,848.63-3,392.37

Finding the Fourth Proportional to 7,897.21, 11,848.63 and 3,392.37

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Solution

The fourth proportional to 7,897.21, 11,848.63 and 3,392.37 is: 5,089.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897.21 : 11,848.63 = 3,392.37 : x
  2. Step 2: Convert to fraction form
    7,897.21/11,848.63 = 3,392.37/x
  3. Step 3: Cross multiply
    7,897.21x = 11,848.63 × 3,392.37
  4. Step 4: Simplify right side
    7,897.21x = 40,194,970.82
  5. Step 5: Solve for x
    x = 40,194,970.82/7,897.21
  6. Step 6: Final answer
    x = 5,089.77

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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.