Home / 4,376.10-6,561.74-2,991

Finding the Fourth Proportional to 4,376.10, 6,561.74 and 2,991

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Solution

The fourth proportional to 4,376.10, 6,561.74 and 2,991 is: 4,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,376.10 : 6,561.74 = 2,991 : x
  2. Step 2: Convert to fraction form
    4,376.10/6,561.74 = 2,991/x
  3. Step 3: Cross multiply
    4,376.10x = 6,561.74 × 2,991
  4. Step 4: Simplify right side
    4,376.10x = 19,626,164.34
  5. Step 5: Solve for x
    x = 19,626,164.34/4,376.10
  6. Step 6: Final answer
    x = 4,484.85

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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.