Home / 7,740.56-11,610.66-1,897.14

Finding the Fourth Proportional to 7,740.56, 11,610.66 and 1,897.14

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Solution

The fourth proportional to 7,740.56, 11,610.66 and 1,897.14 is: 2,845.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.56 : 11,610.66 = 1,897.14 : x
  2. Step 2: Convert to fraction form
    7,740.56/11,610.66 = 1,897.14/x
  3. Step 3: Cross multiply
    7,740.56x = 11,610.66 × 1,897.14
  4. Step 4: Simplify right side
    7,740.56x = 22,027,047.51
  5. Step 5: Solve for x
    x = 22,027,047.51/7,740.56
  6. Step 6: Final answer
    x = 2,845.67

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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.