Home / 4,020.74-6,031.06-1,390.16

Finding the Fourth Proportional to 4,020.74, 6,031.06 and 1,390.16

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Solution

The fourth proportional to 4,020.74, 6,031.06 and 1,390.16 is: 2,085.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,020.74 : 6,031.06 = 1,390.16 : x
  2. Step 2: Convert to fraction form
    4,020.74/6,031.06 = 1,390.16/x
  3. Step 3: Cross multiply
    4,020.74x = 6,031.06 × 1,390.16
  4. Step 4: Simplify right side
    4,020.74x = 8,384,149.97
  5. Step 5: Solve for x
    x = 8,384,149.97/4,020.74
  6. Step 6: Final answer
    x = 2,085.23

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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.