Home / 7,225.62-9,970.45-4,039.03

Finding the Fourth Proportional to 7,225.62, 9,970.45 and 4,039.03

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Solution

The fourth proportional to 7,225.62, 9,970.45 and 4,039.03 is: 5,573.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,225.62 : 9,970.45 = 4,039.03 : x
  2. Step 2: Convert to fraction form
    7,225.62/9,970.45 = 4,039.03/x
  3. Step 3: Cross multiply
    7,225.62x = 9,970.45 × 4,039.03
  4. Step 4: Simplify right side
    7,225.62x = 40,270,946.66
  5. Step 5: Solve for x
    x = 40,270,946.66/7,225.62
  6. Step 6: Final answer
    x = 5,573.36

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1.5x scale

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.