Home / 4,581.64-6,872.40-1,118.92

Finding the Fourth Proportional to 4,581.64, 6,872.40 and 1,118.92

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Solution

The fourth proportional to 4,581.64, 6,872.40 and 1,118.92 is: 1,678.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,581.64 : 6,872.40 = 1,118.92 : x
  2. Step 2: Convert to fraction form
    4,581.64/6,872.40 = 1,118.92/x
  3. Step 3: Cross multiply
    4,581.64x = 6,872.40 × 1,118.92
  4. Step 4: Simplify right side
    4,581.64x = 7,689,665.81
  5. Step 5: Solve for x
    x = 7,689,665.81/4,581.64
  6. Step 6: Final answer
    x = 1,678.37

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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.