Home / 7,289.04-10,058.56-4,145.20

Finding the Fourth Proportional to 7,289.04, 10,058.56 and 4,145.20

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Solution

The fourth proportional to 7,289.04, 10,058.56 and 4,145.20 is: 5,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.04 : 10,058.56 = 4,145.20 : x
  2. Step 2: Convert to fraction form
    7,289.04/10,058.56 = 4,145.20/x
  3. Step 3: Cross multiply
    7,289.04x = 10,058.56 × 4,145.20
  4. Step 4: Simplify right side
    7,289.04x = 41,694,742.91
  5. Step 5: Solve for x
    x = 41,694,742.91/7,289.04
  6. Step 6: Final answer
    x = 5,720.20

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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.