Home / 3,510.84-5,263.01-1,321.02

Finding the Fourth Proportional to 3,510.84, 5,263.01 and 1,321.02

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Solution

The fourth proportional to 3,510.84, 5,263.01 and 1,321.02 is: 1,980.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510.84 : 5,263.01 = 1,321.02 : x
  2. Step 2: Convert to fraction form
    3,510.84/5,263.01 = 1,321.02/x
  3. Step 3: Cross multiply
    3,510.84x = 5,263.01 × 1,321.02
  4. Step 4: Simplify right side
    3,510.84x = 6,952,534.87
  5. Step 5: Solve for x
    x = 6,952,534.87/3,510.84
  6. Step 6: Final answer
    x = 1,980.31

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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.