Home / 1,806.28-2,707.59-710.21

Finding the Fourth Proportional to 1,806.28, 2,707.59 and 710.21

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Solution

The fourth proportional to 1,806.28, 2,707.59 and 710.21 is: 1,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.28 : 2,707.59 = 710.21 : x
  2. Step 2: Convert to fraction form
    1,806.28/2,707.59 = 710.21/x
  3. Step 3: Cross multiply
    1,806.28x = 2,707.59 × 710.21
  4. Step 4: Simplify right side
    1,806.28x = 1,922,964.26
  5. Step 5: Solve for x
    x = 1,922,964.26/1,806.28
  6. Step 6: Final answer
    x = 1,064.60

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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.