Home / 7,289.48-10,058.64-4,145

Finding the Fourth Proportional to 7,289.48, 10,058.64 and 4,145

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Solution

The fourth proportional to 7,289.48, 10,058.64 and 4,145 is: 5,719.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.48 : 10,058.64 = 4,145 : x
  2. Step 2: Convert to fraction form
    7,289.48/10,058.64 = 4,145/x
  3. Step 3: Cross multiply
    7,289.48x = 10,058.64 × 4,145
  4. Step 4: Simplify right side
    7,289.48x = 41,693,062.80
  5. Step 5: Solve for x
    x = 41,693,062.80/7,289.48
  6. Step 6: Final answer
    x = 5,719.62

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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.