Home / 4,211.40-5,817.78-4,038.60

Finding the Fourth Proportional to 4,211.40, 5,817.78 and 4,038.60

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Solution

The fourth proportional to 4,211.40, 5,817.78 and 4,038.60 is: 5,579.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.40 : 5,817.78 = 4,038.60 : x
  2. Step 2: Convert to fraction form
    4,211.40/5,817.78 = 4,038.60/x
  3. Step 3: Cross multiply
    4,211.40x = 5,817.78 × 4,038.60
  4. Step 4: Simplify right side
    4,211.40x = 23,495,686.31
  5. Step 5: Solve for x
    x = 23,495,686.31/4,211.40
  6. Step 6: Final answer
    x = 5,579.07

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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.