Home / 2,148.27-2,964.65-1,403.55

Finding the Fourth Proportional to 2,148.27, 2,964.65 and 1,403.55

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Solution

The fourth proportional to 2,148.27, 2,964.65 and 1,403.55 is: 1,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.27 : 2,964.65 = 1,403.55 : x
  2. Step 2: Convert to fraction form
    2,148.27/2,964.65 = 1,403.55/x
  3. Step 3: Cross multiply
    2,148.27x = 2,964.65 × 1,403.55
  4. Step 4: Simplify right side
    2,148.27x = 4,161,027.49
  5. Step 5: Solve for x
    x = 4,161,027.49/2,148.27
  6. Step 6: Final answer
    x = 1,936.92

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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.