Home / 2,278.25-3,417.08-890.63

Finding the Fourth Proportional to 2,278.25, 3,417.08 and 890.63

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Solution

The fourth proportional to 2,278.25, 3,417.08 and 890.63 is: 1,335.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.25 : 3,417.08 = 890.63 : x
  2. Step 2: Convert to fraction form
    2,278.25/3,417.08 = 890.63/x
  3. Step 3: Cross multiply
    2,278.25x = 3,417.08 × 890.63
  4. Step 4: Simplify right side
    2,278.25x = 3,043,332.42
  5. Step 5: Solve for x
    x = 3,043,332.42/2,278.25
  6. Step 6: Final answer
    x = 1,335.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.