Home / 7,515.36-11,272.72-2,898.08

Finding the Fourth Proportional to 7,515.36, 11,272.72 and 2,898.08

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Solution

The fourth proportional to 7,515.36, 11,272.72 and 2,898.08 is: 4,347.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.36 : 11,272.72 = 2,898.08 : x
  2. Step 2: Convert to fraction form
    7,515.36/11,272.72 = 2,898.08/x
  3. Step 3: Cross multiply
    7,515.36x = 11,272.72 × 2,898.08
  4. Step 4: Simplify right side
    7,515.36x = 32,669,244.38
  5. Step 5: Solve for x
    x = 32,669,244.38/7,515.36
  6. Step 6: Final answer
    x = 4,347.00

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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.