Home / 1,642.27-2,266.36-934.15

Finding the Fourth Proportional to 1,642.27, 2,266.36 and 934.15

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Solution

The fourth proportional to 1,642.27, 2,266.36 and 934.15 is: 1,289.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642.27 : 2,266.36 = 934.15 : x
  2. Step 2: Convert to fraction form
    1,642.27/2,266.36 = 934.15/x
  3. Step 3: Cross multiply
    1,642.27x = 2,266.36 × 934.15
  4. Step 4: Simplify right side
    1,642.27x = 2,117,120.19
  5. Step 5: Solve for x
    x = 2,117,120.19/1,642.27
  6. Step 6: Final answer
    x = 1,289.14

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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.