Home / 4,015.71-5,543.57-2,690.28

Finding the Fourth Proportional to 4,015.71, 5,543.57 and 2,690.28

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Solution

The fourth proportional to 4,015.71, 5,543.57 and 2,690.28 is: 3,713.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,015.71 : 5,543.57 = 2,690.28 : x
  2. Step 2: Convert to fraction form
    4,015.71/5,543.57 = 2,690.28/x
  3. Step 3: Cross multiply
    4,015.71x = 5,543.57 × 2,690.28
  4. Step 4: Simplify right side
    4,015.71x = 14,913,762.23
  5. Step 5: Solve for x
    x = 14,913,762.23/4,015.71
  6. Step 6: Final answer
    x = 3,713.85

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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.