Home / 5,214.79-7,203.31-3,886.19

Finding the Fourth Proportional to 5,214.79, 7,203.31 and 3,886.19

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Solution

The fourth proportional to 5,214.79, 7,203.31 and 3,886.19 is: 5,368.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.79 : 7,203.31 = 3,886.19 : x
  2. Step 2: Convert to fraction form
    5,214.79/7,203.31 = 3,886.19/x
  3. Step 3: Cross multiply
    5,214.79x = 7,203.31 × 3,886.19
  4. Step 4: Simplify right side
    5,214.79x = 27,993,434.43
  5. Step 5: Solve for x
    x = 27,993,434.43/5,214.79
  6. Step 6: Final answer
    x = 5,368.08

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Half scale
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Double scale
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1.5x scale

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.