Home / 4,445.50-6,669.24-1,980.86

Finding the Fourth Proportional to 4,445.50, 6,669.24 and 1,980.86

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Solution

The fourth proportional to 4,445.50, 6,669.24 and 1,980.86 is: 2,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,445.50 : 6,669.24 = 1,980.86 : x
  2. Step 2: Convert to fraction form
    4,445.50/6,669.24 = 1,980.86/x
  3. Step 3: Cross multiply
    4,445.50x = 6,669.24 × 1,980.86
  4. Step 4: Simplify right side
    4,445.50x = 13,210,830.75
  5. Step 5: Solve for x
    x = 13,210,830.75/4,445.50
  6. Step 6: Final answer
    x = 2,971.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.