Home / 7,112.17-10,663.68-2,955.05

Finding the Fourth Proportional to 7,112.17, 10,663.68 and 2,955.05

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Solution

The fourth proportional to 7,112.17, 10,663.68 and 2,955.05 is: 4,430.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.17 : 10,663.68 = 2,955.05 : x
  2. Step 2: Convert to fraction form
    7,112.17/10,663.68 = 2,955.05/x
  3. Step 3: Cross multiply
    7,112.17x = 10,663.68 × 2,955.05
  4. Step 4: Simplify right side
    7,112.17x = 31,511,707.58
  5. Step 5: Solve for x
    x = 31,511,707.58/7,112.17
  6. Step 6: Final answer
    x = 4,430.67

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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.