Home / 1,439.83-2,157.58-1,029.84

Finding the Fourth Proportional to 1,439.83, 2,157.58 and 1,029.84

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Solution

The fourth proportional to 1,439.83, 2,157.58 and 1,029.84 is: 1,543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.83 : 2,157.58 = 1,029.84 : x
  2. Step 2: Convert to fraction form
    1,439.83/2,157.58 = 1,029.84/x
  3. Step 3: Cross multiply
    1,439.83x = 2,157.58 × 1,029.84
  4. Step 4: Simplify right side
    1,439.83x = 2,221,962.19
  5. Step 5: Solve for x
    x = 2,221,962.19/1,439.83
  6. Step 6: Final answer
    x = 1,543.21

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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.