Home / 2,715.08-4,069.76-1,326.51

Finding the Fourth Proportional to 2,715.08, 4,069.76 and 1,326.51

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Solution

The fourth proportional to 2,715.08, 4,069.76 and 1,326.51 is: 1,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.08 : 4,069.76 = 1,326.51 : x
  2. Step 2: Convert to fraction form
    2,715.08/4,069.76 = 1,326.51/x
  3. Step 3: Cross multiply
    2,715.08x = 4,069.76 × 1,326.51
  4. Step 4: Simplify right side
    2,715.08x = 5,398,570.71
  5. Step 5: Solve for x
    x = 5,398,570.71/2,715.08
  6. Step 6: Final answer
    x = 1,988.37

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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.