Home / 3,653.14-5,478.36-1,312.52

Finding the Fourth Proportional to 3,653.14, 5,478.36 and 1,312.52

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Solution

The fourth proportional to 3,653.14, 5,478.36 and 1,312.52 is: 1,968.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.14 : 5,478.36 = 1,312.52 : x
  2. Step 2: Convert to fraction form
    3,653.14/5,478.36 = 1,312.52/x
  3. Step 3: Cross multiply
    3,653.14x = 5,478.36 × 1,312.52
  4. Step 4: Simplify right side
    3,653.14x = 7,190,432.14
  5. Step 5: Solve for x
    x = 7,190,432.14/3,653.14
  6. Step 6: Final answer
    x = 1,968.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.