Home / 2,575.40-3,554.04-1,396.47

Finding the Fourth Proportional to 2,575.40, 3,554.04 and 1,396.47

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Solution

The fourth proportional to 2,575.40, 3,554.04 and 1,396.47 is: 1,927.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,575.40 : 3,554.04 = 1,396.47 : x
  2. Step 2: Convert to fraction form
    2,575.40/3,554.04 = 1,396.47/x
  3. Step 3: Cross multiply
    2,575.40x = 3,554.04 × 1,396.47
  4. Step 4: Simplify right side
    2,575.40x = 4,963,110.24
  5. Step 5: Solve for x
    x = 4,963,110.24/2,575.40
  6. Step 6: Final answer
    x = 1,927.12

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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.