Home / 7,705.81-11,558.58-2,159.07

Finding the Fourth Proportional to 7,705.81, 11,558.58 and 2,159.07

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Solution

The fourth proportional to 7,705.81, 11,558.58 and 2,159.07 is: 3,238.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.81 : 11,558.58 = 2,159.07 : x
  2. Step 2: Convert to fraction form
    7,705.81/11,558.58 = 2,159.07/x
  3. Step 3: Cross multiply
    7,705.81x = 11,558.58 × 2,159.07
  4. Step 4: Simplify right side
    7,705.81x = 24,955,783.32
  5. Step 5: Solve for x
    x = 24,955,783.32/7,705.81
  6. Step 6: Final answer
    x = 3,238.57

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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.