Home / 7,058.09-9,740.10-3,871.32

Finding the Fourth Proportional to 7,058.09, 9,740.10 and 3,871.32

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Solution

The fourth proportional to 7,058.09, 9,740.10 and 3,871.32 is: 5,342.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,058.09 : 9,740.10 = 3,871.32 : x
  2. Step 2: Convert to fraction form
    7,058.09/9,740.10 = 3,871.32/x
  3. Step 3: Cross multiply
    7,058.09x = 9,740.10 × 3,871.32
  4. Step 4: Simplify right side
    7,058.09x = 37,707,062.19
  5. Step 5: Solve for x
    x = 37,707,062.19/7,058.09
  6. Step 6: Final answer
    x = 5,342.39

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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.