Home / 5,290.40-7,296.72-3,192.32

Finding the Fourth Proportional to 5,290.40, 7,296.72 and 3,192.32

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Solution

The fourth proportional to 5,290.40, 7,296.72 and 3,192.32 is: 4,402.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.40 : 7,296.72 = 3,192.32 : x
  2. Step 2: Convert to fraction form
    5,290.40/7,296.72 = 3,192.32/x
  3. Step 3: Cross multiply
    5,290.40x = 7,296.72 × 3,192.32
  4. Step 4: Simplify right side
    5,290.40x = 23,293,465.19
  5. Step 5: Solve for x
    x = 23,293,465.19/5,290.40
  6. Step 6: Final answer
    x = 4,402.97

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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.