Home / 7,239.86-9,992.08-4,587.51

Finding the Fourth Proportional to 7,239.86, 9,992.08 and 4,587.51

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Solution

The fourth proportional to 7,239.86, 9,992.08 and 4,587.51 is: 6,331.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.86 : 9,992.08 = 4,587.51 : x
  2. Step 2: Convert to fraction form
    7,239.86/9,992.08 = 4,587.51/x
  3. Step 3: Cross multiply
    7,239.86x = 9,992.08 × 4,587.51
  4. Step 4: Simplify right side
    7,239.86x = 45,838,766.92
  5. Step 5: Solve for x
    x = 45,838,766.92/7,239.86
  6. Step 6: Final answer
    x = 6,331.44

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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.