Home / 1,717.66-2,370.49-971.63

Finding the Fourth Proportional to 1,717.66, 2,370.49 and 971.63

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Solution

The fourth proportional to 1,717.66, 2,370.49 and 971.63 is: 1,340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.66 : 2,370.49 = 971.63 : x
  2. Step 2: Convert to fraction form
    1,717.66/2,370.49 = 971.63/x
  3. Step 3: Cross multiply
    1,717.66x = 2,370.49 × 971.63
  4. Step 4: Simplify right side
    1,717.66x = 2,303,227.35
  5. Step 5: Solve for x
    x = 2,303,227.35/1,717.66
  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.