Home / 4,719.65-6,513.47-3,123.54

Finding the Fourth Proportional to 4,719.65, 6,513.47 and 3,123.54

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Solution

The fourth proportional to 4,719.65, 6,513.47 and 3,123.54 is: 4,310.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.65 : 6,513.47 = 3,123.54 : x
  2. Step 2: Convert to fraction form
    4,719.65/6,513.47 = 3,123.54/x
  3. Step 3: Cross multiply
    4,719.65x = 6,513.47 × 3,123.54
  4. Step 4: Simplify right side
    4,719.65x = 20,345,068.47
  5. Step 5: Solve for x
    x = 20,345,068.47/4,719.65
  6. Step 6: Final answer
    x = 4,310.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.