Home / 5,981.60-8,254.87-4,985.21

Finding the Fourth Proportional to 5,981.60, 8,254.87 and 4,985.21

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Solution

The fourth proportional to 5,981.60, 8,254.87 and 4,985.21 is: 6,879.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,981.60 : 8,254.87 = 4,985.21 : x
  2. Step 2: Convert to fraction form
    5,981.60/8,254.87 = 4,985.21/x
  3. Step 3: Cross multiply
    5,981.60x = 8,254.87 × 4,985.21
  4. Step 4: Simplify right side
    5,981.60x = 41,152,260.47
  5. Step 5: Solve for x
    x = 41,152,260.47/5,981.60
  6. Step 6: Final answer
    x = 6,879.81

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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.