Home / 1,053.60-1,579.77-505.50

Finding the Fourth Proportional to 1,053.60, 1,579.77 and 505.50

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Solution

The fourth proportional to 1,053.60, 1,579.77 and 505.50 is: 757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053.60 : 1,579.77 = 505.50 : x
  2. Step 2: Convert to fraction form
    1,053.60/1,579.77 = 505.50/x
  3. Step 3: Cross multiply
    1,053.60x = 1,579.77 × 505.50
  4. Step 4: Simplify right side
    1,053.60x = 798,573.74
  5. Step 5: Solve for x
    x = 798,573.74/1,053.60
  6. Step 6: Final answer
    x = 757.95

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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.