Home / 5,072.45-7,000.05-2,948.15

Finding the Fourth Proportional to 5,072.45, 7,000.05 and 2,948.15

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Solution

The fourth proportional to 5,072.45, 7,000.05 and 2,948.15 is: 4,068.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.45 : 7,000.05 = 2,948.15 : x
  2. Step 2: Convert to fraction form
    5,072.45/7,000.05 = 2,948.15/x
  3. Step 3: Cross multiply
    5,072.45x = 7,000.05 × 2,948.15
  4. Step 4: Simplify right side
    5,072.45x = 20,637,161.71
  5. Step 5: Solve for x
    x = 20,637,161.71/5,072.45
  6. Step 6: Final answer
    x = 4,068.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.