Home / 3,615.18-5,421.78-1,017.54

Finding the Fourth Proportional to 3,615.18, 5,421.78 and 1,017.54

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Solution

The fourth proportional to 3,615.18, 5,421.78 and 1,017.54 is: 1,526.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.18 : 5,421.78 = 1,017.54 : x
  2. Step 2: Convert to fraction form
    3,615.18/5,421.78 = 1,017.54/x
  3. Step 3: Cross multiply
    3,615.18x = 5,421.78 × 1,017.54
  4. Step 4: Simplify right side
    3,615.18x = 5,516,878.02
  5. Step 5: Solve for x
    x = 5,516,878.02/3,615.18
  6. Step 6: Final answer
    x = 1,526.03

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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.