Home / 3,152.40-4,725.72-1,611.60

Finding the Fourth Proportional to 3,152.40, 4,725.72 and 1,611.60

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Solution

The fourth proportional to 3,152.40, 4,725.72 and 1,611.60 is: 2,415.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.40 : 4,725.72 = 1,611.60 : x
  2. Step 2: Convert to fraction form
    3,152.40/4,725.72 = 1,611.60/x
  3. Step 3: Cross multiply
    3,152.40x = 4,725.72 × 1,611.60
  4. Step 4: Simplify right side
    3,152.40x = 7,615,970.35
  5. Step 5: Solve for x
    x = 7,615,970.35/3,152.40
  6. Step 6: Final answer
    x = 2,415.93

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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.