Home / 3,246.90-4,870.08-1,947.42

Finding the Fourth Proportional to 3,246.90, 4,870.08 and 1,947.42

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Solution

The fourth proportional to 3,246.90, 4,870.08 and 1,947.42 is: 2,920.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.90 : 4,870.08 = 1,947.42 : x
  2. Step 2: Convert to fraction form
    3,246.90/4,870.08 = 1,947.42/x
  3. Step 3: Cross multiply
    3,246.90x = 4,870.08 × 1,947.42
  4. Step 4: Simplify right side
    3,246.90x = 9,484,091.19
  5. Step 5: Solve for x
    x = 9,484,091.19/3,246.90
  6. Step 6: Final answer
    x = 2,920.97

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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.