Home / 1,189.12-1,784.10-530.94

Finding the Fourth Proportional to 1,189.12, 1,784.10 and 530.94

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Solution

The fourth proportional to 1,189.12, 1,784.10 and 530.94 is: 796.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189.12 : 1,784.10 = 530.94 : x
  2. Step 2: Convert to fraction form
    1,189.12/1,784.10 = 530.94/x
  3. Step 3: Cross multiply
    1,189.12x = 1,784.10 × 530.94
  4. Step 4: Simplify right side
    1,189.12x = 947,246.92
  5. Step 5: Solve for x
    x = 947,246.92/1,189.12
  6. Step 6: Final answer
    x = 796.59

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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.