Home / 1,717.22-2,369.86-971.25

Finding the Fourth Proportional to 1,717.22, 2,369.86 and 971.25

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Solution

The fourth proportional to 1,717.22, 2,369.86 and 971.25 is: 1,340.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.22 : 2,369.86 = 971.25 : x
  2. Step 2: Convert to fraction form
    1,717.22/2,369.86 = 971.25/x
  3. Step 3: Cross multiply
    1,717.22x = 2,369.86 × 971.25
  4. Step 4: Simplify right side
    1,717.22x = 2,301,717.10
  5. Step 5: Solve for x
    x = 2,301,717.10/1,717.22
  6. Step 6: Final answer
    x = 1,340.38

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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.