Home / 7,148.10-10,725.09-2,988.99

Finding the Fourth Proportional to 7,148.10, 10,725.09 and 2,988.99

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Solution

The fourth proportional to 7,148.10, 10,725.09 and 2,988.99 is: 4,484.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148.10 : 10,725.09 = 2,988.99 : x
  2. Step 2: Convert to fraction form
    7,148.10/10,725.09 = 2,988.99/x
  3. Step 3: Cross multiply
    7,148.10x = 10,725.09 × 2,988.99
  4. Step 4: Simplify right side
    7,148.10x = 32,057,118.19
  5. Step 5: Solve for x
    x = 32,057,118.19/7,148.10
  6. Step 6: Final answer
    x = 4,484.70

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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.