Home / 2,476.26-3,417.39-1,428.39

Finding the Fourth Proportional to 2,476.26, 3,417.39 and 1,428.39

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Solution

The fourth proportional to 2,476.26, 3,417.39 and 1,428.39 is: 1,971.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,476.26 : 3,417.39 = 1,428.39 : x
  2. Step 2: Convert to fraction form
    2,476.26/3,417.39 = 1,428.39/x
  3. Step 3: Cross multiply
    2,476.26x = 3,417.39 × 1,428.39
  4. Step 4: Simplify right side
    2,476.26x = 4,881,365.70
  5. Step 5: Solve for x
    x = 4,881,365.70/2,476.26
  6. Step 6: Final answer
    x = 1,971.27

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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.