Home / 1,970.11-2,960.57-1,897.21

Finding the Fourth Proportional to 1,970.11, 2,960.57 and 1,897.21

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Solution

The fourth proportional to 1,970.11, 2,960.57 and 1,897.21 is: 2,851.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.11 : 2,960.57 = 1,897.21 : x
  2. Step 2: Convert to fraction form
    1,970.11/2,960.57 = 1,897.21/x
  3. Step 3: Cross multiply
    1,970.11x = 2,960.57 × 1,897.21
  4. Step 4: Simplify right side
    1,970.11x = 5,616,823.01
  5. Step 5: Solve for x
    x = 5,616,823.01/1,970.11
  6. Step 6: Final answer
    x = 2,851.02

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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.