Home / 2,128.40-2,935.92-1,341.04

Finding the Fourth Proportional to 2,128.40, 2,935.92 and 1,341.04

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Solution

The fourth proportional to 2,128.40, 2,935.92 and 1,341.04 is: 1,849.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.40 : 2,935.92 = 1,341.04 : x
  2. Step 2: Convert to fraction form
    2,128.40/2,935.92 = 1,341.04/x
  3. Step 3: Cross multiply
    2,128.40x = 2,935.92 × 1,341.04
  4. Step 4: Simplify right side
    2,128.40x = 3,937,186.16
  5. Step 5: Solve for x
    x = 3,937,186.16/2,128.40
  6. Step 6: Final answer
    x = 1,849.83

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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.