Home / 1,770.65-2,440.58-1,415.94

Finding the Fourth Proportional to 1,770.65, 2,440.58 and 1,415.94

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Solution

The fourth proportional to 1,770.65, 2,440.58 and 1,415.94 is: 1,951.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.65 : 2,440.58 = 1,415.94 : x
  2. Step 2: Convert to fraction form
    1,770.65/2,440.58 = 1,415.94/x
  3. Step 3: Cross multiply
    1,770.65x = 2,440.58 × 1,415.94
  4. Step 4: Simplify right side
    1,770.65x = 3,455,707.77
  5. Step 5: Solve for x
    x = 3,455,707.77/1,770.65
  6. Step 6: Final answer
    x = 1,951.67

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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.