Home / 2,104.65-2,904.53-1,220.67

Finding the Fourth Proportional to 2,104.65, 2,904.53 and 1,220.67

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Solution

The fourth proportional to 2,104.65, 2,904.53 and 1,220.67 is: 1,684.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,104.65 : 2,904.53 = 1,220.67 : x
  2. Step 2: Convert to fraction form
    2,104.65/2,904.53 = 1,220.67/x
  3. Step 3: Cross multiply
    2,104.65x = 2,904.53 × 1,220.67
  4. Step 4: Simplify right side
    2,104.65x = 3,545,466.53
  5. Step 5: Solve for x
    x = 3,545,466.53/2,104.65
  6. Step 6: Final answer
    x = 1,684.59

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1.5x scale

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.