Home / 5,328.18-7,352.78-3,090.15

Finding the Fourth Proportional to 5,328.18, 7,352.78 and 3,090.15

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Solution

The fourth proportional to 5,328.18, 7,352.78 and 3,090.15 is: 4,264.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.18 : 7,352.78 = 3,090.15 : x
  2. Step 2: Convert to fraction form
    5,328.18/7,352.78 = 3,090.15/x
  3. Step 3: Cross multiply
    5,328.18x = 7,352.78 × 3,090.15
  4. Step 4: Simplify right side
    5,328.18x = 22,721,177.67
  5. Step 5: Solve for x
    x = 22,721,177.67/5,328.18
  6. Step 6: Final answer
    x = 4,264.34

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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.