Home / 1,943.46-2,681.12-1,313.76

Finding the Fourth Proportional to 1,943.46, 2,681.12 and 1,313.76

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Solution

The fourth proportional to 1,943.46, 2,681.12 and 1,313.76 is: 1,812.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.46 : 2,681.12 = 1,313.76 : x
  2. Step 2: Convert to fraction form
    1,943.46/2,681.12 = 1,313.76/x
  3. Step 3: Cross multiply
    1,943.46x = 2,681.12 × 1,313.76
  4. Step 4: Simplify right side
    1,943.46x = 3,522,348.21
  5. Step 5: Solve for x
    x = 3,522,348.21/1,943.46
  6. Step 6: Final answer
    x = 1,812.41

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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.