Home / 2,113.43-2,917.55-1,406.45

Finding the Fourth Proportional to 2,113.43, 2,917.55 and 1,406.45

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Solution

The fourth proportional to 2,113.43, 2,917.55 and 1,406.45 is: 1,941.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.43 : 2,917.55 = 1,406.45 : x
  2. Step 2: Convert to fraction form
    2,113.43/2,917.55 = 1,406.45/x
  3. Step 3: Cross multiply
    2,113.43x = 2,917.55 × 1,406.45
  4. Step 4: Simplify right side
    2,113.43x = 4,103,366.58
  5. Step 5: Solve for x
    x = 4,103,366.58/2,113.43
  6. Step 6: Final answer
    x = 1,941.57

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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.