Home / 3,862.80-5,330.64-2,094.40

Finding the Fourth Proportional to 3,862.80, 5,330.64 and 2,094.40

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Solution

The fourth proportional to 3,862.80, 5,330.64 and 2,094.40 is: 2,890.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.80 : 5,330.64 = 2,094.40 : x
  2. Step 2: Convert to fraction form
    3,862.80/5,330.64 = 2,094.40/x
  3. Step 3: Cross multiply
    3,862.80x = 5,330.64 × 2,094.40
  4. Step 4: Simplify right side
    3,862.80x = 11,164,492.42
  5. Step 5: Solve for x
    x = 11,164,492.42/3,862.80
  6. Step 6: Final answer
    x = 2,890.26

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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.