Home / 1,717.74-2,370.30-971.58

Finding the Fourth Proportional to 1,717.74, 2,370.30 and 971.58

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Solution

The fourth proportional to 1,717.74, 2,370.30 and 971.58 is: 1,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.74 : 2,370.30 = 971.58 : x
  2. Step 2: Convert to fraction form
    1,717.74/2,370.30 = 971.58/x
  3. Step 3: Cross multiply
    1,717.74x = 2,370.30 × 971.58
  4. Step 4: Simplify right side
    1,717.74x = 2,302,936.07
  5. Step 5: Solve for x
    x = 2,302,936.07/1,717.74
  6. Step 6: Final answer
    x = 1,340.68

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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.