Home / 3,509.31-5,262.20-1,316.50

Finding the Fourth Proportional to 3,509.31, 5,262.20 and 1,316.50

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Solution

The fourth proportional to 3,509.31, 5,262.20 and 1,316.50 is: 1,974.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.31 : 5,262.20 = 1,316.50 : x
  2. Step 2: Convert to fraction form
    3,509.31/5,262.20 = 1,316.50/x
  3. Step 3: Cross multiply
    3,509.31x = 5,262.20 × 1,316.50
  4. Step 4: Simplify right side
    3,509.31x = 6,927,671.50
  5. Step 5: Solve for x
    x = 6,927,671.50/3,509.31
  6. Step 6: Final answer
    x = 1,974.08

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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.