Home / 5,640.15-7,782.38-3,283.05

Finding the Fourth Proportional to 5,640.15, 7,782.38 and 3,283.05

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Solution

The fourth proportional to 5,640.15, 7,782.38 and 3,283.05 is: 4,530.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.15 : 7,782.38 = 3,283.05 : x
  2. Step 2: Convert to fraction form
    5,640.15/7,782.38 = 3,283.05/x
  3. Step 3: Cross multiply
    5,640.15x = 7,782.38 × 3,283.05
  4. Step 4: Simplify right side
    5,640.15x = 25,549,926.24
  5. Step 5: Solve for x
    x = 25,549,926.24/5,640.15
  6. Step 6: Final answer
    x = 4,530.01

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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.