Home / 1,484.10-2,048.28-1,129.43

Finding the Fourth Proportional to 1,484.10, 2,048.28 and 1,129.43

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Solution

The fourth proportional to 1,484.10, 2,048.28 and 1,129.43 is: 1,558.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.10 : 2,048.28 = 1,129.43 : x
  2. Step 2: Convert to fraction form
    1,484.10/2,048.28 = 1,129.43/x
  3. Step 3: Cross multiply
    1,484.10x = 2,048.28 × 1,129.43
  4. Step 4: Simplify right side
    1,484.10x = 2,313,388.88
  5. Step 5: Solve for x
    x = 2,313,388.88/1,484.10
  6. Step 6: Final answer
    x = 1,558.78

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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.