Home / 3,513.96-5,271.25-916.92

Finding the Fourth Proportional to 3,513.96, 5,271.25 and 916.92

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Solution

The fourth proportional to 3,513.96, 5,271.25 and 916.92 is: 1,375.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.96 : 5,271.25 = 916.92 : x
  2. Step 2: Convert to fraction form
    3,513.96/5,271.25 = 916.92/x
  3. Step 3: Cross multiply
    3,513.96x = 5,271.25 × 916.92
  4. Step 4: Simplify right side
    3,513.96x = 4,833,314.55
  5. Step 5: Solve for x
    x = 4,833,314.55/3,513.96
  6. Step 6: Final answer
    x = 1,375.46

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1.5x scale

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.