Home / 3,513.58-5,271.36-1,539.40

Finding the Fourth Proportional to 3,513.58, 5,271.36 and 1,539.40

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Solution

The fourth proportional to 3,513.58, 5,271.36 and 1,539.40 is: 2,309.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.58 : 5,271.36 = 1,539.40 : x
  2. Step 2: Convert to fraction form
    3,513.58/5,271.36 = 1,539.40/x
  3. Step 3: Cross multiply
    3,513.58x = 5,271.36 × 1,539.40
  4. Step 4: Simplify right side
    3,513.58x = 8,114,731.58
  5. Step 5: Solve for x
    x = 8,114,731.58/3,513.58
  6. Step 6: Final answer
    x = 2,309.53

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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.