Home / 1,651.34-2,278.21-943.22

Finding the Fourth Proportional to 1,651.34, 2,278.21 and 943.22

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Solution

The fourth proportional to 1,651.34, 2,278.21 and 943.22 is: 1,301.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,651.34 : 2,278.21 = 943.22 : x
  2. Step 2: Convert to fraction form
    1,651.34/2,278.21 = 943.22/x
  3. Step 3: Cross multiply
    1,651.34x = 2,278.21 × 943.22
  4. Step 4: Simplify right side
    1,651.34x = 2,148,853.24
  5. Step 5: Solve for x
    x = 2,148,853.24/1,651.34
  6. Step 6: Final answer
    x = 1,301.28

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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.