Home / 3,071.53-4,238.82-1,708.84

Finding the Fourth Proportional to 3,071.53, 4,238.82 and 1,708.84

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Solution

The fourth proportional to 3,071.53, 4,238.82 and 1,708.84 is: 2,358.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.53 : 4,238.82 = 1,708.84 : x
  2. Step 2: Convert to fraction form
    3,071.53/4,238.82 = 1,708.84/x
  3. Step 3: Cross multiply
    3,071.53x = 4,238.82 × 1,708.84
  4. Step 4: Simplify right side
    3,071.53x = 7,243,465.17
  5. Step 5: Solve for x
    x = 7,243,465.17/3,071.53
  6. Step 6: Final answer
    x = 2,358.26

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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.