Home / 5,310.36-7,328.48-2,920.43

Finding the Fourth Proportional to 5,310.36, 7,328.48 and 2,920.43

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Solution

The fourth proportional to 5,310.36, 7,328.48 and 2,920.43 is: 4,030.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.36 : 7,328.48 = 2,920.43 : x
  2. Step 2: Convert to fraction form
    5,310.36/7,328.48 = 2,920.43/x
  3. Step 3: Cross multiply
    5,310.36x = 7,328.48 × 2,920.43
  4. Step 4: Simplify right side
    5,310.36x = 21,402,261.60
  5. Step 5: Solve for x
    x = 21,402,261.60/5,310.36
  6. Step 6: Final answer
    x = 4,030.29

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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.