Home / 7,320.42-10,980.83-2,390.35

Finding the Fourth Proportional to 7,320.42, 10,980.83 and 2,390.35

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Solution

The fourth proportional to 7,320.42, 10,980.83 and 2,390.35 is: 3,585.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.42 : 10,980.83 = 2,390.35 : x
  2. Step 2: Convert to fraction form
    7,320.42/10,980.83 = 2,390.35/x
  3. Step 3: Cross multiply
    7,320.42x = 10,980.83 × 2,390.35
  4. Step 4: Simplify right side
    7,320.42x = 26,248,026.99
  5. Step 5: Solve for x
    x = 26,248,026.99/7,320.42
  6. Step 6: Final answer
    x = 3,585.59

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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.