Home / 5,415.24-7,472.88-3,057.60

Finding the Fourth Proportional to 5,415.24, 7,472.88 and 3,057.60

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Solution

The fourth proportional to 5,415.24, 7,472.88 and 3,057.60 is: 4,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.24 : 7,472.88 = 3,057.60 : x
  2. Step 2: Convert to fraction form
    5,415.24/7,472.88 = 3,057.60/x
  3. Step 3: Cross multiply
    5,415.24x = 7,472.88 × 3,057.60
  4. Step 4: Simplify right side
    5,415.24x = 22,849,077.89
  5. Step 5: Solve for x
    x = 22,849,077.89/5,415.24
  6. Step 6: Final answer
    x = 4,219.40

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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.