Home / 1,053.20-1,579.17-322.64

Finding the Fourth Proportional to 1,053.20, 1,579.17 and 322.64

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Solution

The fourth proportional to 1,053.20, 1,579.17 and 322.64 is: 483.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053.20 : 1,579.17 = 322.64 : x
  2. Step 2: Convert to fraction form
    1,053.20/1,579.17 = 322.64/x
  3. Step 3: Cross multiply
    1,053.20x = 1,579.17 × 322.64
  4. Step 4: Simplify right side
    1,053.20x = 509,503.41
  5. Step 5: Solve for x
    x = 509,503.41/1,053.20
  6. Step 6: Final answer
    x = 483.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.