Home / 1,190.30-1,786.15-574.64

Finding the Fourth Proportional to 1,190.30, 1,786.15 and 574.64

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Solution

The fourth proportional to 1,190.30, 1,786.15 and 574.64 is: 862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.30 : 1,786.15 = 574.64 : x
  2. Step 2: Convert to fraction form
    1,190.30/1,786.15 = 574.64/x
  3. Step 3: Cross multiply
    1,190.30x = 1,786.15 × 574.64
  4. Step 4: Simplify right side
    1,190.30x = 1,026,393.24
  5. Step 5: Solve for x
    x = 1,026,393.24/1,190.30
  6. Step 6: Final answer
    x = 862.30

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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.