Home / 1,717.54-2,370.20-931.58

Finding the Fourth Proportional to 1,717.54, 2,370.20 and 931.58

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Solution

The fourth proportional to 1,717.54, 2,370.20 and 931.58 is: 1,285.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.54 : 2,370.20 = 931.58 : x
  2. Step 2: Convert to fraction form
    1,717.54/2,370.20 = 931.58/x
  3. Step 3: Cross multiply
    1,717.54x = 2,370.20 × 931.58
  4. Step 4: Simplify right side
    1,717.54x = 2,208,023.30
  5. Step 5: Solve for x
    x = 2,208,023.30/1,717.54
  6. Step 6: Final answer
    x = 1,285.58

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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.