Home / 1,053.07-1,579.59-436.77

Finding the Fourth Proportional to 1,053.07, 1,579.59 and 436.77

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Solution

The fourth proportional to 1,053.07, 1,579.59 and 436.77 is: 655.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053.07 : 1,579.59 = 436.77 : x
  2. Step 2: Convert to fraction form
    1,053.07/1,579.59 = 436.77/x
  3. Step 3: Cross multiply
    1,053.07x = 1,579.59 × 436.77
  4. Step 4: Simplify right side
    1,053.07x = 689,917.52
  5. Step 5: Solve for x
    x = 689,917.52/1,053.07
  6. Step 6: Final answer
    x = 655.15

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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.