Home / 1,154.40-1,730.04-1,080.59

Finding the Fourth Proportional to 1,154.40, 1,730.04 and 1,080.59

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Solution

The fourth proportional to 1,154.40, 1,730.04 and 1,080.59 is: 1,619.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.40 : 1,730.04 = 1,080.59 : x
  2. Step 2: Convert to fraction form
    1,154.40/1,730.04 = 1,080.59/x
  3. Step 3: Cross multiply
    1,154.40x = 1,730.04 × 1,080.59
  4. Step 4: Simplify right side
    1,154.40x = 1,869,455.27
  5. Step 5: Solve for x
    x = 1,869,455.27/1,154.40
  6. Step 6: Final answer
    x = 1,619.42

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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.