Home / 4,342.10-6,516.79-1,878.80

Finding the Fourth Proportional to 4,342.10, 6,516.79 and 1,878.80

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Solution

The fourth proportional to 4,342.10, 6,516.79 and 1,878.80 is: 2,819.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,342.10 : 6,516.79 = 1,878.80 : x
  2. Step 2: Convert to fraction form
    4,342.10/6,516.79 = 1,878.80/x
  3. Step 3: Cross multiply
    4,342.10x = 6,516.79 × 1,878.80
  4. Step 4: Simplify right side
    4,342.10x = 12,243,707.77
  5. Step 5: Solve for x
    x = 12,243,707.77/4,342.10
  6. Step 6: Final answer
    x = 2,819.77

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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.