Home / 4,445.64-6,681.42-2,138.76

Finding the Fourth Proportional to 4,445.64, 6,681.42 and 2,138.76

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Solution

The fourth proportional to 4,445.64, 6,681.42 and 2,138.76 is: 3,214.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,445.64 : 6,681.42 = 2,138.76 : x
  2. Step 2: Convert to fraction form
    4,445.64/6,681.42 = 2,138.76/x
  3. Step 3: Cross multiply
    4,445.64x = 6,681.42 × 2,138.76
  4. Step 4: Simplify right side
    4,445.64x = 14,289,953.84
  5. Step 5: Solve for x
    x = 14,289,953.84/4,445.64
  6. Step 6: Final answer
    x = 3,214.37

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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.