Home / 2,126.64-2,935.20-1,340.16

Finding the Fourth Proportional to 2,126.64, 2,935.20 and 1,340.16

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Solution

The fourth proportional to 2,126.64, 2,935.20 and 1,340.16 is: 1,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.64 : 2,935.20 = 1,340.16 : x
  2. Step 2: Convert to fraction form
    2,126.64/2,935.20 = 1,340.16/x
  3. Step 3: Cross multiply
    2,126.64x = 2,935.20 × 1,340.16
  4. Step 4: Simplify right side
    2,126.64x = 3,933,637.63
  5. Step 5: Solve for x
    x = 3,933,637.63/2,126.64
  6. Step 6: Final answer
    x = 1,849.70

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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.