Home / 1,717.65-2,370.06-971.49

Finding the Fourth Proportional to 1,717.65, 2,370.06 and 971.49

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Solution

The fourth proportional to 1,717.65, 2,370.06 and 971.49 is: 1,340.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.65 : 2,370.06 = 971.49 : x
  2. Step 2: Convert to fraction form
    1,717.65/2,370.06 = 971.49/x
  3. Step 3: Cross multiply
    1,717.65x = 2,370.06 × 971.49
  4. Step 4: Simplify right side
    1,717.65x = 2,302,489.59
  5. Step 5: Solve for x
    x = 2,302,489.59/1,717.65
  6. Step 6: Final answer
    x = 1,340.49

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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.