Home / 1,490.92-2,056.26-966.76

Finding the Fourth Proportional to 1,490.92, 2,056.26 and 966.76

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Solution

The fourth proportional to 1,490.92, 2,056.26 and 966.76 is: 1,333.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.92 : 2,056.26 = 966.76 : x
  2. Step 2: Convert to fraction form
    1,490.92/2,056.26 = 966.76/x
  3. Step 3: Cross multiply
    1,490.92x = 2,056.26 × 966.76
  4. Step 4: Simplify right side
    1,490.92x = 1,987,909.92
  5. Step 5: Solve for x
    x = 1,987,909.92/1,490.92
  6. Step 6: Final answer
    x = 1,333.34

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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.