Home / 3,152.60-4,735.65-1,920.68

Finding the Fourth Proportional to 3,152.60, 4,735.65 and 1,920.68

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Solution

The fourth proportional to 3,152.60, 4,735.65 and 1,920.68 is: 2,885.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.60 : 4,735.65 = 1,920.68 : x
  2. Step 2: Convert to fraction form
    3,152.60/4,735.65 = 1,920.68/x
  3. Step 3: Cross multiply
    3,152.60x = 4,735.65 × 1,920.68
  4. Step 4: Simplify right side
    3,152.60x = 9,095,668.24
  5. Step 5: Solve for x
    x = 9,095,668.24/3,152.60
  6. Step 6: Final answer
    x = 2,885.13

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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.