Home / 4,778.40-7,159.86-2,923.89

Finding the Fourth Proportional to 4,778.40, 7,159.86 and 2,923.89

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Solution

The fourth proportional to 4,778.40, 7,159.86 and 2,923.89 is: 4,381.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.40 : 7,159.86 = 2,923.89 : x
  2. Step 2: Convert to fraction form
    4,778.40/7,159.86 = 2,923.89/x
  3. Step 3: Cross multiply
    4,778.40x = 7,159.86 × 2,923.89
  4. Step 4: Simplify right side
    4,778.40x = 20,934,643.06
  5. Step 5: Solve for x
    x = 20,934,643.06/4,778.40
  6. Step 6: Final answer
    x = 4,381.10

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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.