Home / 7,740.20-10,681.50-4,203.44

Finding the Fourth Proportional to 7,740.20, 10,681.50 and 4,203.44

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Solution

The fourth proportional to 7,740.20, 10,681.50 and 4,203.44 is: 5,800.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.20 : 10,681.50 = 4,203.44 : x
  2. Step 2: Convert to fraction form
    7,740.20/10,681.50 = 4,203.44/x
  3. Step 3: Cross multiply
    7,740.20x = 10,681.50 × 4,203.44
  4. Step 4: Simplify right side
    7,740.20x = 44,899,044.36
  5. Step 5: Solve for x
    x = 44,899,044.36/7,740.20
  6. Step 6: Final answer
    x = 5,800.76

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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.