Home / 1,190.30-1,784.68-572.77

Finding the Fourth Proportional to 1,190.30, 1,784.68 and 572.77

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Solution

The fourth proportional to 1,190.30, 1,784.68 and 572.77 is: 858.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.30 : 1,784.68 = 572.77 : x
  2. Step 2: Convert to fraction form
    1,190.30/1,784.68 = 572.77/x
  3. Step 3: Cross multiply
    1,190.30x = 1,784.68 × 572.77
  4. Step 4: Simplify right side
    1,190.30x = 1,022,211.16
  5. Step 5: Solve for x
    x = 1,022,211.16/1,190.30
  6. Step 6: Final answer
    x = 858.78

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1.5x scale

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.