Home / 3,862.79-5,330.69-2,269.01

Finding the Fourth Proportional to 3,862.79, 5,330.69 and 2,269.01

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Solution

The fourth proportional to 3,862.79, 5,330.69 and 2,269.01 is: 3,131.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.79 : 5,330.69 = 2,269.01 : x
  2. Step 2: Convert to fraction form
    3,862.79/5,330.69 = 2,269.01/x
  3. Step 3: Cross multiply
    3,862.79x = 5,330.69 × 2,269.01
  4. Step 4: Simplify right side
    3,862.79x = 12,095,390.90
  5. Step 5: Solve for x
    x = 12,095,390.90/3,862.79
  6. Step 6: Final answer
    x = 3,131.26

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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.