Home / 1,447.40-2,171.19-473.51

Finding the Fourth Proportional to 1,447.40, 2,171.19 and 473.51

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Solution

The fourth proportional to 1,447.40, 2,171.19 and 473.51 is: 710.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.40 : 2,171.19 = 473.51 : x
  2. Step 2: Convert to fraction form
    1,447.40/2,171.19 = 473.51/x
  3. Step 3: Cross multiply
    1,447.40x = 2,171.19 × 473.51
  4. Step 4: Simplify right side
    1,447.40x = 1,028,080.18
  5. Step 5: Solve for x
    x = 1,028,080.18/1,447.40
  6. Step 6: Final answer
    x = 710.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.