Home / 2,055.65-2,838.87-1,309.95

Finding the Fourth Proportional to 2,055.65, 2,838.87 and 1,309.95

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Solution

The fourth proportional to 2,055.65, 2,838.87 and 1,309.95 is: 1,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,055.65 : 2,838.87 = 1,309.95 : x
  2. Step 2: Convert to fraction form
    2,055.65/2,838.87 = 1,309.95/x
  3. Step 3: Cross multiply
    2,055.65x = 2,838.87 × 1,309.95
  4. Step 4: Simplify right side
    2,055.65x = 3,718,777.76
  5. Step 5: Solve for x
    x = 3,718,777.76/2,055.65
  6. Step 6: Final answer
    x = 1,809.05

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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.