Home / 4,312.89-6,464.98-1,678.75

Finding the Fourth Proportional to 4,312.89, 6,464.98 and 1,678.75

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Solution

The fourth proportional to 4,312.89, 6,464.98 and 1,678.75 is: 2,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,312.89 : 6,464.98 = 1,678.75 : x
  2. Step 2: Convert to fraction form
    4,312.89/6,464.98 = 1,678.75/x
  3. Step 3: Cross multiply
    4,312.89x = 6,464.98 × 1,678.75
  4. Step 4: Simplify right side
    4,312.89x = 10,853,082.21
  5. Step 5: Solve for x
    x = 10,853,082.21/4,312.89
  6. Step 6: Final answer
    x = 2,516.43

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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.