Home / 3,725.30-5,140.74-2,400.32

Finding the Fourth Proportional to 3,725.30, 5,140.74 and 2,400.32

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Solution

The fourth proportional to 3,725.30, 5,140.74 and 2,400.32 is: 3,312.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.30 : 5,140.74 = 2,400.32 : x
  2. Step 2: Convert to fraction form
    3,725.30/5,140.74 = 2,400.32/x
  3. Step 3: Cross multiply
    3,725.30x = 5,140.74 × 2,400.32
  4. Step 4: Simplify right side
    3,725.30x = 12,339,421.04
  5. Step 5: Solve for x
    x = 12,339,421.04/3,725.30
  6. Step 6: Final answer
    x = 3,312.33

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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.