Home / 3,868.65-5,802.42-1,236.45

Finding the Fourth Proportional to 3,868.65, 5,802.42 and 1,236.45

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Solution

The fourth proportional to 3,868.65, 5,802.42 and 1,236.45 is: 1,854.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.65 : 5,802.42 = 1,236.45 : x
  2. Step 2: Convert to fraction form
    3,868.65/5,802.42 = 1,236.45/x
  3. Step 3: Cross multiply
    3,868.65x = 5,802.42 × 1,236.45
  4. Step 4: Simplify right side
    3,868.65x = 7,174,402.21
  5. Step 5: Solve for x
    x = 7,174,402.21/3,868.65
  6. Step 6: Final answer
    x = 1,854.50

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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.