Home / 4,638.24-6,402.96-2,871

Finding the Fourth Proportional to 4,638.24, 6,402.96 and 2,871

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Solution

The fourth proportional to 4,638.24, 6,402.96 and 2,871 is: 3,963.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.24 : 6,402.96 = 2,871 : x
  2. Step 2: Convert to fraction form
    4,638.24/6,402.96 = 2,871/x
  3. Step 3: Cross multiply
    4,638.24x = 6,402.96 × 2,871
  4. Step 4: Simplify right side
    4,638.24x = 18,382,898.16
  5. Step 5: Solve for x
    x = 18,382,898.16/4,638.24
  6. Step 6: Final answer
    x = 3,963.33

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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.