Home / 1,970.23-2,718.87-1,086.02

Finding the Fourth Proportional to 1,970.23, 2,718.87 and 1,086.02

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Solution

The fourth proportional to 1,970.23, 2,718.87 and 1,086.02 is: 1,498.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.23 : 2,718.87 = 1,086.02 : x
  2. Step 2: Convert to fraction form
    1,970.23/2,718.87 = 1,086.02/x
  3. Step 3: Cross multiply
    1,970.23x = 2,718.87 × 1,086.02
  4. Step 4: Simplify right side
    1,970.23x = 2,952,747.20
  5. Step 5: Solve for x
    x = 2,952,747.20/1,970.23
  6. Step 6: Final answer
    x = 1,498.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.