Home / 5,415.30-7,477.34-4,154.36

Finding the Fourth Proportional to 5,415.30, 7,477.34 and 4,154.36

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Solution

The fourth proportional to 5,415.30, 7,477.34 and 4,154.36 is: 5,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.30 : 7,477.34 = 4,154.36 : x
  2. Step 2: Convert to fraction form
    5,415.30/7,477.34 = 4,154.36/x
  3. Step 3: Cross multiply
    5,415.30x = 7,477.34 × 4,154.36
  4. Step 4: Simplify right side
    5,415.30x = 31,063,504.04
  5. Step 5: Solve for x
    x = 31,063,504.04/5,415.30
  6. Step 6: Final answer
    x = 5,736.25

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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.