Home / 3,051.26-4,210.90-1,931.79

Finding the Fourth Proportional to 3,051.26, 4,210.90 and 1,931.79

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Solution

The fourth proportional to 3,051.26, 4,210.90 and 1,931.79 is: 2,665.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,051.26 : 4,210.90 = 1,931.79 : x
  2. Step 2: Convert to fraction form
    3,051.26/4,210.90 = 1,931.79/x
  3. Step 3: Cross multiply
    3,051.26x = 4,210.90 × 1,931.79
  4. Step 4: Simplify right side
    3,051.26x = 8,134,574.51
  5. Step 5: Solve for x
    x = 8,134,574.51/3,051.26
  6. Step 6: Final answer
    x = 2,665.97

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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.