Home / 7,190.04-9,921.72-4,045.62

Finding the Fourth Proportional to 7,190.04, 9,921.72 and 4,045.62

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Solution

The fourth proportional to 7,190.04, 9,921.72 and 4,045.62 is: 5,582.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.04 : 9,921.72 = 4,045.62 : x
  2. Step 2: Convert to fraction form
    7,190.04/9,921.72 = 4,045.62/x
  3. Step 3: Cross multiply
    7,190.04x = 9,921.72 × 4,045.62
  4. Step 4: Simplify right side
    7,190.04x = 40,139,508.87
  5. Step 5: Solve for x
    x = 40,139,508.87/7,190.04
  6. Step 6: Final answer
    x = 5,582.65

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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.