Home / 3,578.65-5,362.05-1,386.18

Finding the Fourth Proportional to 3,578.65, 5,362.05 and 1,386.18

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Solution

The fourth proportional to 3,578.65, 5,362.05 and 1,386.18 is: 2,076.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.65 : 5,362.05 = 1,386.18 : x
  2. Step 2: Convert to fraction form
    3,578.65/5,362.05 = 1,386.18/x
  3. Step 3: Cross multiply
    3,578.65x = 5,362.05 × 1,386.18
  4. Step 4: Simplify right side
    3,578.65x = 7,432,763.87
  5. Step 5: Solve for x
    x = 7,432,763.87/3,578.65
  6. Step 6: Final answer
    x = 2,076.98

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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.