Home / 3,020.42-4,168.70-1,901.72

Finding the Fourth Proportional to 3,020.42, 4,168.70 and 1,901.72

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Solution

The fourth proportional to 3,020.42, 4,168.70 and 1,901.72 is: 2,624.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.42 : 4,168.70 = 1,901.72 : x
  2. Step 2: Convert to fraction form
    3,020.42/4,168.70 = 1,901.72/x
  3. Step 3: Cross multiply
    3,020.42x = 4,168.70 × 1,901.72
  4. Step 4: Simplify right side
    3,020.42x = 7,927,700.16
  5. Step 5: Solve for x
    x = 7,927,700.16/3,020.42
  6. Step 6: Final answer
    x = 2,624.70

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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.