Home / 5,388.18-7,435.15-3,030.13

Finding the Fourth Proportional to 5,388.18, 7,435.15 and 3,030.13

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Solution

The fourth proportional to 5,388.18, 7,435.15 and 3,030.13 is: 4,181.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.18 : 7,435.15 = 3,030.13 : x
  2. Step 2: Convert to fraction form
    5,388.18/7,435.15 = 3,030.13/x
  3. Step 3: Cross multiply
    5,388.18x = 7,435.15 × 3,030.13
  4. Step 4: Simplify right side
    5,388.18x = 22,529,471.07
  5. Step 5: Solve for x
    x = 22,529,471.07/5,388.18
  6. Step 6: Final answer
    x = 4,181.28

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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.