Home / 7,289.40-10,058.46-4,145.64

Finding the Fourth Proportional to 7,289.40, 10,058.46 and 4,145.64

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Solution

The fourth proportional to 7,289.40, 10,058.46 and 4,145.64 is: 5,720.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.40 : 10,058.46 = 4,145.64 : x
  2. Step 2: Convert to fraction form
    7,289.40/10,058.46 = 4,145.64/x
  3. Step 3: Cross multiply
    7,289.40x = 10,058.46 × 4,145.64
  4. Step 4: Simplify right side
    7,289.40x = 41,698,754.11
  5. Step 5: Solve for x
    x = 41,698,754.11/7,289.40
  6. Step 6: Final answer
    x = 5,720.46

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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.