Home / 5,638.46-7,782.62-3,281.04

Finding the Fourth Proportional to 5,638.46, 7,782.62 and 3,281.04

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Solution

The fourth proportional to 5,638.46, 7,782.62 and 3,281.04 is: 4,528.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.46 : 7,782.62 = 3,281.04 : x
  2. Step 2: Convert to fraction form
    5,638.46/7,782.62 = 3,281.04/x
  3. Step 3: Cross multiply
    5,638.46x = 7,782.62 × 3,281.04
  4. Step 4: Simplify right side
    5,638.46x = 25,535,071.12
  5. Step 5: Solve for x
    x = 25,535,071.12/5,638.46
  6. Step 6: Final answer
    x = 4,528.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.