Home / 3,916.98-5,405.98-2,425.38

Finding the Fourth Proportional to 3,916.98, 5,405.98 and 2,425.38

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Solution

The fourth proportional to 3,916.98, 5,405.98 and 2,425.38 is: 3,347.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.98 : 5,405.98 = 2,425.38 : x
  2. Step 2: Convert to fraction form
    3,916.98/5,405.98 = 2,425.38/x
  3. Step 3: Cross multiply
    3,916.98x = 5,405.98 × 2,425.38
  4. Step 4: Simplify right side
    3,916.98x = 13,111,555.77
  5. Step 5: Solve for x
    x = 13,111,555.77/3,916.98
  6. Step 6: Final answer
    x = 3,347.36

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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.