Home / 7,110.24-9,820.86-4,879.50

Finding the Fourth Proportional to 7,110.24, 9,820.86 and 4,879.50

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Solution

The fourth proportional to 7,110.24, 9,820.86 and 4,879.50 is: 6,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.24 : 9,820.86 = 4,879.50 : x
  2. Step 2: Convert to fraction form
    7,110.24/9,820.86 = 4,879.50/x
  3. Step 3: Cross multiply
    7,110.24x = 9,820.86 × 4,879.50
  4. Step 4: Simplify right side
    7,110.24x = 47,920,886.37
  5. Step 5: Solve for x
    x = 47,920,886.37/7,110.24
  6. Step 6: Final answer
    x = 6,739.70

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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.