Home / 1,606.40-2,216.07-934.20

Finding the Fourth Proportional to 1,606.40, 2,216.07 and 934.20

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Solution

The fourth proportional to 1,606.40, 2,216.07 and 934.20 is: 1,288.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,606.40 : 2,216.07 = 934.20 : x
  2. Step 2: Convert to fraction form
    1,606.40/2,216.07 = 934.20/x
  3. Step 3: Cross multiply
    1,606.40x = 2,216.07 × 934.20
  4. Step 4: Simplify right side
    1,606.40x = 2,070,260.90
  5. Step 5: Solve for x
    x = 2,070,260.90/1,606.40
  6. Step 6: Final answer
    x = 1,288.76

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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.