Home / 1,981.29-2,967.26-1,570.65

Finding the Fourth Proportional to 1,981.29, 2,967.26 and 1,570.65

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Solution

The fourth proportional to 1,981.29, 2,967.26 and 1,570.65 is: 2,352.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.29 : 2,967.26 = 1,570.65 : x
  2. Step 2: Convert to fraction form
    1,981.29/2,967.26 = 1,570.65/x
  3. Step 3: Cross multiply
    1,981.29x = 2,967.26 × 1,570.65
  4. Step 4: Simplify right side
    1,981.29x = 4,660,533.22
  5. Step 5: Solve for x
    x = 4,660,533.22/1,981.29
  6. Step 6: Final answer
    x = 2,352.28

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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.