Home / 2,485.37-3,730.21-1,316.21

Finding the Fourth Proportional to 2,485.37, 3,730.21 and 1,316.21

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Solution

The fourth proportional to 2,485.37, 3,730.21 and 1,316.21 is: 1,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.37 : 3,730.21 = 1,316.21 : x
  2. Step 2: Convert to fraction form
    2,485.37/3,730.21 = 1,316.21/x
  3. Step 3: Cross multiply
    2,485.37x = 3,730.21 × 1,316.21
  4. Step 4: Simplify right side
    2,485.37x = 4,909,725.17
  5. Step 5: Solve for x
    x = 4,909,725.17/2,485.37
  6. Step 6: Final answer
    x = 1,975.45

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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.