Home / 1,543.33-2,315.77-619.55

Finding the Fourth Proportional to 1,543.33, 2,315.77 and 619.55

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Solution

The fourth proportional to 1,543.33, 2,315.77 and 619.55 is: 929.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.33 : 2,315.77 = 619.55 : x
  2. Step 2: Convert to fraction form
    1,543.33/2,315.77 = 619.55/x
  3. Step 3: Cross multiply
    1,543.33x = 2,315.77 × 619.55
  4. Step 4: Simplify right side
    1,543.33x = 1,434,735.30
  5. Step 5: Solve for x
    x = 1,434,735.30/1,543.33
  6. Step 6: Final answer
    x = 929.64

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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.