Home / 7,190.04-9,920.70-4,837.80

Finding the Fourth Proportional to 7,190.04, 9,920.70 and 4,837.80

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Solution

The fourth proportional to 7,190.04, 9,920.70 and 4,837.80 is: 6,675.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.04 : 9,920.70 = 4,837.80 : x
  2. Step 2: Convert to fraction form
    7,190.04/9,920.70 = 4,837.80/x
  3. Step 3: Cross multiply
    7,190.04x = 9,920.70 × 4,837.80
  4. Step 4: Simplify right side
    7,190.04x = 47,994,362.46
  5. Step 5: Solve for x
    x = 47,994,362.46/7,190.04
  6. Step 6: Final answer
    x = 6,675.12

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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.