Home / 2,138.24-2,950.90-1,475.40

Finding the Fourth Proportional to 2,138.24, 2,950.90 and 1,475.40

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Solution

The fourth proportional to 2,138.24, 2,950.90 and 1,475.40 is: 2,036.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.24 : 2,950.90 = 1,475.40 : x
  2. Step 2: Convert to fraction form
    2,138.24/2,950.90 = 1,475.40/x
  3. Step 3: Cross multiply
    2,138.24x = 2,950.90 × 1,475.40
  4. Step 4: Simplify right side
    2,138.24x = 4,353,757.86
  5. Step 5: Solve for x
    x = 4,353,757.86/2,138.24
  6. Step 6: Final answer
    x = 2,036.14

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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.