Home / 1,717.69-2,370.28-971.73

Finding the Fourth Proportional to 1,717.69, 2,370.28 and 971.73

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Solution

The fourth proportional to 1,717.69, 2,370.28 and 971.73 is: 1,340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.69 : 2,370.28 = 971.73 : x
  2. Step 2: Convert to fraction form
    1,717.69/2,370.28 = 971.73/x
  3. Step 3: Cross multiply
    1,717.69x = 2,370.28 × 971.73
  4. Step 4: Simplify right side
    1,717.69x = 2,303,272.18
  5. Step 5: Solve for x
    x = 2,303,272.18/1,717.69
  6. Step 6: Final answer
    x = 1,340.91

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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.