Home / 1,086.61-1,629.28-530.23

Finding the Fourth Proportional to 1,086.61, 1,629.28 and 530.23

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Solution

The fourth proportional to 1,086.61, 1,629.28 and 530.23 is: 795.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.61 : 1,629.28 = 530.23 : x
  2. Step 2: Convert to fraction form
    1,086.61/1,629.28 = 530.23/x
  3. Step 3: Cross multiply
    1,086.61x = 1,629.28 × 530.23
  4. Step 4: Simplify right side
    1,086.61x = 863,893.13
  5. Step 5: Solve for x
    x = 863,893.13/1,086.61
  6. Step 6: Final answer
    x = 795.04

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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.