Home / 1,178.50-1,622.60-1,141.24

Finding the Fourth Proportional to 1,178.50, 1,622.60 and 1,141.24

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Solution

The fourth proportional to 1,178.50, 1,622.60 and 1,141.24 is: 1,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.50 : 1,622.60 = 1,141.24 : x
  2. Step 2: Convert to fraction form
    1,178.50/1,622.60 = 1,141.24/x
  3. Step 3: Cross multiply
    1,178.50x = 1,622.60 × 1,141.24
  4. Step 4: Simplify right side
    1,178.50x = 1,851,776.02
  5. Step 5: Solve for x
    x = 1,851,776.02/1,178.50
  6. Step 6: Final answer
    x = 1,571.30

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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.