Home / 3,149.07-4,346.04-1,970.52

Finding the Fourth Proportional to 3,149.07, 4,346.04 and 1,970.52

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Solution

The fourth proportional to 3,149.07, 4,346.04 and 1,970.52 is: 2,719.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.07 : 4,346.04 = 1,970.52 : x
  2. Step 2: Convert to fraction form
    3,149.07/4,346.04 = 1,970.52/x
  3. Step 3: Cross multiply
    3,149.07x = 4,346.04 × 1,970.52
  4. Step 4: Simplify right side
    3,149.07x = 8,563,958.74
  5. Step 5: Solve for x
    x = 8,563,958.74/3,149.07
  6. Step 6: Final answer
    x = 2,719.52

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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.