Home / 1,717.92-2,369.10-1,386.16

Finding the Fourth Proportional to 1,717.92, 2,369.10 and 1,386.16

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Solution

The fourth proportional to 1,717.92, 2,369.10 and 1,386.16 is: 1,911.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.92 : 2,369.10 = 1,386.16 : x
  2. Step 2: Convert to fraction form
    1,717.92/2,369.10 = 1,386.16/x
  3. Step 3: Cross multiply
    1,717.92x = 2,369.10 × 1,386.16
  4. Step 4: Simplify right side
    1,717.92x = 3,283,951.66
  5. Step 5: Solve for x
    x = 3,283,951.66/1,717.92
  6. Step 6: Final answer
    x = 1,911.59

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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.