Home / 7,065.40-9,749.14-4,080.66

Finding the Fourth Proportional to 7,065.40, 9,749.14 and 4,080.66

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Solution

The fourth proportional to 7,065.40, 9,749.14 and 4,080.66 is: 5,630.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.40 : 9,749.14 = 4,080.66 : x
  2. Step 2: Convert to fraction form
    7,065.40/9,749.14 = 4,080.66/x
  3. Step 3: Cross multiply
    7,065.40x = 9,749.14 × 4,080.66
  4. Step 4: Simplify right side
    7,065.40x = 39,782,925.63
  5. Step 5: Solve for x
    x = 39,782,925.63/7,065.40
  6. Step 6: Final answer
    x = 5,630.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.