Home / 1,471.29-2,188.17-1,434.36

Finding the Fourth Proportional to 1,471.29, 2,188.17 and 1,434.36

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Solution

The fourth proportional to 1,471.29, 2,188.17 and 1,434.36 is: 2,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.29 : 2,188.17 = 1,434.36 : x
  2. Step 2: Convert to fraction form
    1,471.29/2,188.17 = 1,434.36/x
  3. Step 3: Cross multiply
    1,471.29x = 2,188.17 × 1,434.36
  4. Step 4: Simplify right side
    1,471.29x = 3,138,623.52
  5. Step 5: Solve for x
    x = 3,138,623.52/1,471.29
  6. Step 6: Final answer
    x = 2,133.25

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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.