Home / 7,970.32-11,954.40-2,126.98

Finding the Fourth Proportional to 7,970.32, 11,954.40 and 2,126.98

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Solution

The fourth proportional to 7,970.32, 11,954.40 and 2,126.98 is: 3,190.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,970.32 : 11,954.40 = 2,126.98 : x
  2. Step 2: Convert to fraction form
    7,970.32/11,954.40 = 2,126.98/x
  3. Step 3: Cross multiply
    7,970.32x = 11,954.40 × 2,126.98
  4. Step 4: Simplify right side
    7,970.32x = 25,426,769.71
  5. Step 5: Solve for x
    x = 25,426,769.71/7,970.32
  6. Step 6: Final answer
    x = 3,190.18

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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.