Home / 1,447.05-2,154.47-1,426.60

Finding the Fourth Proportional to 1,447.05, 2,154.47 and 1,426.60

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Solution

The fourth proportional to 1,447.05, 2,154.47 and 1,426.60 is: 2,124.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.05 : 2,154.47 = 1,426.60 : x
  2. Step 2: Convert to fraction form
    1,447.05/2,154.47 = 1,426.60/x
  3. Step 3: Cross multiply
    1,447.05x = 2,154.47 × 1,426.60
  4. Step 4: Simplify right side
    1,447.05x = 3,073,566.90
  5. Step 5: Solve for x
    x = 3,073,566.90/1,447.05
  6. Step 6: Final answer
    x = 2,124.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.