Home / 1,426.08-1,966.32-1,322.40

Finding the Fourth Proportional to 1,426.08, 1,966.32 and 1,322.40

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Solution

The fourth proportional to 1,426.08, 1,966.32 and 1,322.40 is: 1,823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.08 : 1,966.32 = 1,322.40 : x
  2. Step 2: Convert to fraction form
    1,426.08/1,966.32 = 1,322.40/x
  3. Step 3: Cross multiply
    1,426.08x = 1,966.32 × 1,322.40
  4. Step 4: Simplify right side
    1,426.08x = 2,600,261.57
  5. Step 5: Solve for x
    x = 2,600,261.57/1,426.08
  6. Step 6: Final answer
    x = 1,823.36

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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.