Home / 1,981.13-2,969.06-1,542.92

Finding the Fourth Proportional to 1,981.13, 2,969.06 and 1,542.92

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Solution

The fourth proportional to 1,981.13, 2,969.06 and 1,542.92 is: 2,312.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.13 : 2,969.06 = 1,542.92 : x
  2. Step 2: Convert to fraction form
    1,981.13/2,969.06 = 1,542.92/x
  3. Step 3: Cross multiply
    1,981.13x = 2,969.06 × 1,542.92
  4. Step 4: Simplify right side
    1,981.13x = 4,580,999.50
  5. Step 5: Solve for x
    x = 4,580,999.50/1,981.13
  6. Step 6: Final answer
    x = 2,312.32

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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.