Home / 1,693.38-2,335.77-1,319.70

Finding the Fourth Proportional to 1,693.38, 2,335.77 and 1,319.70

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Solution

The fourth proportional to 1,693.38, 2,335.77 and 1,319.70 is: 1,820.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.38 : 2,335.77 = 1,319.70 : x
  2. Step 2: Convert to fraction form
    1,693.38/2,335.77 = 1,319.70/x
  3. Step 3: Cross multiply
    1,693.38x = 2,335.77 × 1,319.70
  4. Step 4: Simplify right side
    1,693.38x = 3,082,515.67
  5. Step 5: Solve for x
    x = 3,082,515.67/1,693.38
  6. Step 6: Final answer
    x = 1,820.33

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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.