Home / 7,879.24-10,875.20-4,897.32

Finding the Fourth Proportional to 7,879.24, 10,875.20 and 4,897.32

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Solution

The fourth proportional to 7,879.24, 10,875.20 and 4,897.32 is: 6,759.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.24 : 10,875.20 = 4,897.32 : x
  2. Step 2: Convert to fraction form
    7,879.24/10,875.20 = 4,897.32/x
  3. Step 3: Cross multiply
    7,879.24x = 10,875.20 × 4,897.32
  4. Step 4: Simplify right side
    7,879.24x = 53,259,334.46
  5. Step 5: Solve for x
    x = 53,259,334.46/7,879.24
  6. Step 6: Final answer
    x = 6,759.45

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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.