Home / 1,178.37-1,622.57-1,053.63

Finding the Fourth Proportional to 1,178.37, 1,622.57 and 1,053.63

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Solution

The fourth proportional to 1,178.37, 1,622.57 and 1,053.63 is: 1,450.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.37 : 1,622.57 = 1,053.63 : x
  2. Step 2: Convert to fraction form
    1,178.37/1,622.57 = 1,053.63/x
  3. Step 3: Cross multiply
    1,178.37x = 1,622.57 × 1,053.63
  4. Step 4: Simplify right side
    1,178.37x = 1,709,583.16
  5. Step 5: Solve for x
    x = 1,709,583.16/1,178.37
  6. Step 6: Final answer
    x = 1,450.80

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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.