Home / 5,415.16-7,472.86-3,057.40

Finding the Fourth Proportional to 5,415.16, 7,472.86 and 3,057.40

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Solution

The fourth proportional to 5,415.16, 7,472.86 and 3,057.40 is: 4,219.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.16 : 7,472.86 = 3,057.40 : x
  2. Step 2: Convert to fraction form
    5,415.16/7,472.86 = 3,057.40/x
  3. Step 3: Cross multiply
    5,415.16x = 7,472.86 × 3,057.40
  4. Step 4: Simplify right side
    5,415.16x = 22,847,469.51
  5. Step 5: Solve for x
    x = 22,847,469.51/5,415.16
  6. Step 6: Final answer
    x = 4,219.17

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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.