Home / 7,240.11-9,992.43-4,587.77

Finding the Fourth Proportional to 7,240.11, 9,992.43 and 4,587.77

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Solution

The fourth proportional to 7,240.11, 9,992.43 and 4,587.77 is: 6,331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.11 : 9,992.43 = 4,587.77 : x
  2. Step 2: Convert to fraction form
    7,240.11/9,992.43 = 4,587.77/x
  3. Step 3: Cross multiply
    7,240.11x = 9,992.43 × 4,587.77
  4. Step 4: Simplify right side
    7,240.11x = 45,842,897.68
  5. Step 5: Solve for x
    x = 45,842,897.68/7,240.11
  6. Step 6: Final answer
    x = 6,331.80

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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.