Home / 3,539.40-4,887.90-2,916.11

Finding the Fourth Proportional to 3,539.40, 4,887.90 and 2,916.11

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Solution

The fourth proportional to 3,539.40, 4,887.90 and 2,916.11 is: 4,027.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.40 : 4,887.90 = 2,916.11 : x
  2. Step 2: Convert to fraction form
    3,539.40/4,887.90 = 2,916.11/x
  3. Step 3: Cross multiply
    3,539.40x = 4,887.90 × 2,916.11
  4. Step 4: Simplify right side
    3,539.40x = 14,253,629.63
  5. Step 5: Solve for x
    x = 14,253,629.63/3,539.40
  6. Step 6: Final answer
    x = 4,027.13

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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.