Home / 4,080.37-5,630.80-2,312.55

Finding the Fourth Proportional to 4,080.37, 5,630.80 and 2,312.55

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Solution

The fourth proportional to 4,080.37, 5,630.80 and 2,312.55 is: 3,191.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.37 : 5,630.80 = 2,312.55 : x
  2. Step 2: Convert to fraction form
    4,080.37/5,630.80 = 2,312.55/x
  3. Step 3: Cross multiply
    4,080.37x = 5,630.80 × 2,312.55
  4. Step 4: Simplify right side
    4,080.37x = 13,021,506.54
  5. Step 5: Solve for x
    x = 13,021,506.54/4,080.37
  6. Step 6: Final answer
    x = 3,191.26

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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.