Home / 7,970.30-11,955.47-2,126.89

Finding the Fourth Proportional to 7,970.30, 11,955.47 and 2,126.89

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Solution

The fourth proportional to 7,970.30, 11,955.47 and 2,126.89 is: 3,190.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,970.30 : 11,955.47 = 2,126.89 : x
  2. Step 2: Convert to fraction form
    7,970.30/11,955.47 = 2,126.89/x
  3. Step 3: Cross multiply
    7,970.30x = 11,955.47 × 2,126.89
  4. Step 4: Simplify right side
    7,970.30x = 25,427,973.90
  5. Step 5: Solve for x
    x = 25,427,973.90/7,970.30
  6. Step 6: Final answer
    x = 3,190.34

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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.