Home / 1,490.48-2,056.85-827.34

Finding the Fourth Proportional to 1,490.48, 2,056.85 and 827.34

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Solution

The fourth proportional to 1,490.48, 2,056.85 and 827.34 is: 1,141.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.48 : 2,056.85 = 827.34 : x
  2. Step 2: Convert to fraction form
    1,490.48/2,056.85 = 827.34/x
  3. Step 3: Cross multiply
    1,490.48x = 2,056.85 × 827.34
  4. Step 4: Simplify right side
    1,490.48x = 1,701,714.28
  5. Step 5: Solve for x
    x = 1,701,714.28/1,490.48
  6. Step 6: Final answer
    x = 1,141.72

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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.