Home / 1,447.40-2,170.88-473.50

Finding the Fourth Proportional to 1,447.40, 2,170.88 and 473.50

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Solution

The fourth proportional to 1,447.40, 2,170.88 and 473.50 is: 710.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.40 : 2,170.88 = 473.50 : x
  2. Step 2: Convert to fraction form
    1,447.40/2,170.88 = 473.50/x
  3. Step 3: Cross multiply
    1,447.40x = 2,170.88 × 473.50
  4. Step 4: Simplify right side
    1,447.40x = 1,027,911.68
  5. Step 5: Solve for x
    x = 1,027,911.68/1,447.40
  6. Step 6: Final answer
    x = 710.18

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Double scale
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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.