Home / 1,580.65-2,184.21-1,206.97

Finding the Fourth Proportional to 1,580.65, 2,184.21 and 1,206.97

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Solution

The fourth proportional to 1,580.65, 2,184.21 and 1,206.97 is: 1,667.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580.65 : 2,184.21 = 1,206.97 : x
  2. Step 2: Convert to fraction form
    1,580.65/2,184.21 = 1,206.97/x
  3. Step 3: Cross multiply
    1,580.65x = 2,184.21 × 1,206.97
  4. Step 4: Simplify right side
    1,580.65x = 2,636,275.94
  5. Step 5: Solve for x
    x = 2,636,275.94/1,580.65
  6. Step 6: Final answer
    x = 1,667.84

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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.