Home / 2,138.46-2,950.64-1,352.08

Finding the Fourth Proportional to 2,138.46, 2,950.64 and 1,352.08

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Solution

The fourth proportional to 2,138.46, 2,950.64 and 1,352.08 is: 1,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.46 : 2,950.64 = 1,352.08 : x
  2. Step 2: Convert to fraction form
    2,138.46/2,950.64 = 1,352.08/x
  3. Step 3: Cross multiply
    2,138.46x = 2,950.64 × 1,352.08
  4. Step 4: Simplify right side
    2,138.46x = 3,989,501.33
  5. Step 5: Solve for x
    x = 3,989,501.33/2,138.46
  6. Step 6: Final answer
    x = 1,865.60

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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.