Home / 2,389.16-3,583.74-1,361

Finding the Fourth Proportional to 2,389.16, 3,583.74 and 1,361

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Solution

The fourth proportional to 2,389.16, 3,583.74 and 1,361 is: 2,041.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.16 : 3,583.74 = 1,361 : x
  2. Step 2: Convert to fraction form
    2,389.16/3,583.74 = 1,361/x
  3. Step 3: Cross multiply
    2,389.16x = 3,583.74 × 1,361
  4. Step 4: Simplify right side
    2,389.16x = 4,877,470.14
  5. Step 5: Solve for x
    x = 4,877,470.14/2,389.16
  6. Step 6: Final answer
    x = 2,041.50

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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.