Home / 2,947.60-4,415.50-1,776.98

Finding the Fourth Proportional to 2,947.60, 4,415.50 and 1,776.98

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Solution

The fourth proportional to 2,947.60, 4,415.50 and 1,776.98 is: 2,661.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.60 : 4,415.50 = 1,776.98 : x
  2. Step 2: Convert to fraction form
    2,947.60/4,415.50 = 1,776.98/x
  3. Step 3: Cross multiply
    2,947.60x = 4,415.50 × 1,776.98
  4. Step 4: Simplify right side
    2,947.60x = 7,846,228.67
  5. Step 5: Solve for x
    x = 7,846,228.67/2,947.60
  6. Step 6: Final answer
    x = 2,661.91

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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.