Home / 3,638.45-5,457.63-1,556.69

Finding the Fourth Proportional to 3,638.45, 5,457.63 and 1,556.69

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Solution

The fourth proportional to 3,638.45, 5,457.63 and 1,556.69 is: 2,335.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.45 : 5,457.63 = 1,556.69 : x
  2. Step 2: Convert to fraction form
    3,638.45/5,457.63 = 1,556.69/x
  3. Step 3: Cross multiply
    3,638.45x = 5,457.63 × 1,556.69
  4. Step 4: Simplify right side
    3,638.45x = 8,495,810.76
  5. Step 5: Solve for x
    x = 8,495,810.76/3,638.45
  6. Step 6: Final answer
    x = 2,335.01

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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.