Home / 3,513.90-5,270.84-916.62

Finding the Fourth Proportional to 3,513.90, 5,270.84 and 916.62

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Solution

The fourth proportional to 3,513.90, 5,270.84 and 916.62 is: 1,374.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.90 : 5,270.84 = 916.62 : x
  2. Step 2: Convert to fraction form
    3,513.90/5,270.84 = 916.62/x
  3. Step 3: Cross multiply
    3,513.90x = 5,270.84 × 916.62
  4. Step 4: Simplify right side
    3,513.90x = 4,831,357.36
  5. Step 5: Solve for x
    x = 4,831,357.36/3,513.90
  6. Step 6: Final answer
    x = 1,374.93

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Similar ratio
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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.