Home / 1,717.23-2,369.73-971.40

Finding the Fourth Proportional to 1,717.23, 2,369.73 and 971.40

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Solution

The fourth proportional to 1,717.23, 2,369.73 and 971.40 is: 1,340.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.23 : 2,369.73 = 971.40 : x
  2. Step 2: Convert to fraction form
    1,717.23/2,369.73 = 971.40/x
  3. Step 3: Cross multiply
    1,717.23x = 2,369.73 × 971.40
  4. Step 4: Simplify right side
    1,717.23x = 2,301,955.72
  5. Step 5: Solve for x
    x = 2,301,955.72/1,717.23
  6. Step 6: Final answer
    x = 1,340.51

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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.