Home / 3,731.48-5,148.38-2,405.64

Finding the Fourth Proportional to 3,731.48, 5,148.38 and 2,405.64

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Solution

The fourth proportional to 3,731.48, 5,148.38 and 2,405.64 is: 3,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.48 : 5,148.38 = 2,405.64 : x
  2. Step 2: Convert to fraction form
    3,731.48/5,148.38 = 2,405.64/x
  3. Step 3: Cross multiply
    3,731.48x = 5,148.38 × 2,405.64
  4. Step 4: Simplify right side
    3,731.48x = 12,385,148.86
  5. Step 5: Solve for x
    x = 12,385,148.86/3,731.48
  6. Step 6: Final answer
    x = 3,319.10

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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.