Home / 1,484.52-2,048.60-821.35

Finding the Fourth Proportional to 1,484.52, 2,048.60 and 821.35

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Solution

The fourth proportional to 1,484.52, 2,048.60 and 821.35 is: 1,133.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.52 : 2,048.60 = 821.35 : x
  2. Step 2: Convert to fraction form
    1,484.52/2,048.60 = 821.35/x
  3. Step 3: Cross multiply
    1,484.52x = 2,048.60 × 821.35
  4. Step 4: Simplify right side
    1,484.52x = 1,682,617.61
  5. Step 5: Solve for x
    x = 1,682,617.61/1,484.52
  6. Step 6: Final answer
    x = 1,133.45

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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.