Home / 7,319.35-10,980.09-2,387.78

Finding the Fourth Proportional to 7,319.35, 10,980.09 and 2,387.78

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Solution

The fourth proportional to 7,319.35, 10,980.09 and 2,387.78 is: 3,582.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.35 : 10,980.09 = 2,387.78 : x
  2. Step 2: Convert to fraction form
    7,319.35/10,980.09 = 2,387.78/x
  3. Step 3: Cross multiply
    7,319.35x = 10,980.09 × 2,387.78
  4. Step 4: Simplify right side
    7,319.35x = 26,217,984.40
  5. Step 5: Solve for x
    x = 26,217,984.40/7,319.35
  6. Step 6: Final answer
    x = 3,582.01

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1.5x scale

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.