Home / 2,210.77-3,315.10-1,039.79

Finding the Fourth Proportional to 2,210.77, 3,315.10 and 1,039.79

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Solution

The fourth proportional to 2,210.77, 3,315.10 and 1,039.79 is: 1,559.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.77 : 3,315.10 = 1,039.79 : x
  2. Step 2: Convert to fraction form
    2,210.77/3,315.10 = 1,039.79/x
  3. Step 3: Cross multiply
    2,210.77x = 3,315.10 × 1,039.79
  4. Step 4: Simplify right side
    2,210.77x = 3,447,006.74
  5. Step 5: Solve for x
    x = 3,447,006.74/2,210.77
  6. Step 6: Final answer
    x = 1,559.18

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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.