Home / 7,975.22-11,005.79-4,390.35

Finding the Fourth Proportional to 7,975.22, 11,005.79 and 4,390.35

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Solution

The fourth proportional to 7,975.22, 11,005.79 and 4,390.35 is: 6,058.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.22 : 11,005.79 = 4,390.35 : x
  2. Step 2: Convert to fraction form
    7,975.22/11,005.79 = 4,390.35/x
  3. Step 3: Cross multiply
    7,975.22x = 11,005.79 × 4,390.35
  4. Step 4: Simplify right side
    7,975.22x = 48,319,248.17
  5. Step 5: Solve for x
    x = 48,319,248.17/7,975.22
  6. Step 6: Final answer
    x = 6,058.68

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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.