Home / 2,148.49-2,964.94-1,309.08

Finding the Fourth Proportional to 2,148.49, 2,964.94 and 1,309.08

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Solution

The fourth proportional to 2,148.49, 2,964.94 and 1,309.08 is: 1,806.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.49 : 2,964.94 = 1,309.08 : x
  2. Step 2: Convert to fraction form
    2,148.49/2,964.94 = 1,309.08/x
  3. Step 3: Cross multiply
    2,148.49x = 2,964.94 × 1,309.08
  4. Step 4: Simplify right side
    2,148.49x = 3,881,340.38
  5. Step 5: Solve for x
    x = 3,881,340.38/2,148.49
  6. Step 6: Final answer
    x = 1,806.55

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1.5x scale

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.