Home / 1,717.28-2,370.14-971.47

Finding the Fourth Proportional to 1,717.28, 2,370.14 and 971.47

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Solution

The fourth proportional to 1,717.28, 2,370.14 and 971.47 is: 1,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.28 : 2,370.14 = 971.47 : x
  2. Step 2: Convert to fraction form
    1,717.28/2,370.14 = 971.47/x
  3. Step 3: Cross multiply
    1,717.28x = 2,370.14 × 971.47
  4. Step 4: Simplify right side
    1,717.28x = 2,302,527.12
  5. Step 5: Solve for x
    x = 2,302,527.12/1,717.28
  6. Step 6: Final answer
    x = 1,340.80

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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.