Home / 7,319.70-10,987.65-4,039.20

Finding the Fourth Proportional to 7,319.70, 10,987.65 and 4,039.20

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Solution

The fourth proportional to 7,319.70, 10,987.65 and 4,039.20 is: 6,063.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.70 : 10,987.65 = 4,039.20 : x
  2. Step 2: Convert to fraction form
    7,319.70/10,987.65 = 4,039.20/x
  3. Step 3: Cross multiply
    7,319.70x = 10,987.65 × 4,039.20
  4. Step 4: Simplify right side
    7,319.70x = 44,381,315.88
  5. Step 5: Solve for x
    x = 44,381,315.88/7,319.70
  6. Step 6: Final answer
    x = 6,063.27

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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.