Home / 7,320.48-10,980.78-2,390.02

Finding the Fourth Proportional to 7,320.48, 10,980.78 and 2,390.02

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Solution

The fourth proportional to 7,320.48, 10,980.78 and 2,390.02 is: 3,585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.48 : 10,980.78 = 2,390.02 : x
  2. Step 2: Convert to fraction form
    7,320.48/10,980.78 = 2,390.02/x
  3. Step 3: Cross multiply
    7,320.48x = 10,980.78 × 2,390.02
  4. Step 4: Simplify right side
    7,320.48x = 26,244,283.82
  5. Step 5: Solve for x
    x = 26,244,283.82/7,320.48
  6. Step 6: Final answer
    x = 3,585.05

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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.