Home / 1,671.28-2,305.67-962.96

Finding the Fourth Proportional to 1,671.28, 2,305.67 and 962.96

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Solution

The fourth proportional to 1,671.28, 2,305.67 and 962.96 is: 1,328.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.28 : 2,305.67 = 962.96 : x
  2. Step 2: Convert to fraction form
    1,671.28/2,305.67 = 962.96/x
  3. Step 3: Cross multiply
    1,671.28x = 2,305.67 × 962.96
  4. Step 4: Simplify right side
    1,671.28x = 2,220,267.98
  5. Step 5: Solve for x
    x = 2,220,267.98/1,671.28
  6. Step 6: Final answer
    x = 1,328.48

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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.