Home / 4,748.64-7,123.78-2,117.08

Finding the Fourth Proportional to 4,748.64, 7,123.78 and 2,117.08

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Solution

The fourth proportional to 4,748.64, 7,123.78 and 2,117.08 is: 3,175.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.64 : 7,123.78 = 2,117.08 : x
  2. Step 2: Convert to fraction form
    4,748.64/7,123.78 = 2,117.08/x
  3. Step 3: Cross multiply
    4,748.64x = 7,123.78 × 2,117.08
  4. Step 4: Simplify right side
    4,748.64x = 15,081,612.16
  5. Step 5: Solve for x
    x = 15,081,612.16/4,748.64
  6. Step 6: Final answer
    x = 3,175.99

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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.