Home / 1,439.04-2,157.54-616.89

Finding the Fourth Proportional to 1,439.04, 2,157.54 and 616.89

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Solution

The fourth proportional to 1,439.04, 2,157.54 and 616.89 is: 924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.04 : 2,157.54 = 616.89 : x
  2. Step 2: Convert to fraction form
    1,439.04/2,157.54 = 616.89/x
  3. Step 3: Cross multiply
    1,439.04x = 2,157.54 × 616.89
  4. Step 4: Simplify right side
    1,439.04x = 1,330,964.85
  5. Step 5: Solve for x
    x = 1,330,964.85/1,439.04
  6. Step 6: Final answer
    x = 924.90

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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.