Home / 5,638.59-7,782.48-3,281.04

Finding the Fourth Proportional to 5,638.59, 7,782.48 and 3,281.04

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Solution

The fourth proportional to 5,638.59, 7,782.48 and 3,281.04 is: 4,528.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.59 : 7,782.48 = 3,281.04 : x
  2. Step 2: Convert to fraction form
    5,638.59/7,782.48 = 3,281.04/x
  3. Step 3: Cross multiply
    5,638.59x = 7,782.48 × 3,281.04
  4. Step 4: Simplify right side
    5,638.59x = 25,534,628.18
  5. Step 5: Solve for x
    x = 25,534,628.18/5,638.59
  6. Step 6: Final answer
    x = 4,528.55

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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.