Home / 7,975.29-11,005.61-4,390.23

Finding the Fourth Proportional to 7,975.29, 11,005.61 and 4,390.23

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Solution

The fourth proportional to 7,975.29, 11,005.61 and 4,390.23 is: 6,058.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.29 : 11,005.61 = 4,390.23 : x
  2. Step 2: Convert to fraction form
    7,975.29/11,005.61 = 4,390.23/x
  3. Step 3: Cross multiply
    7,975.29x = 11,005.61 × 4,390.23
  4. Step 4: Simplify right side
    7,975.29x = 48,317,159.19
  5. Step 5: Solve for x
    x = 48,317,159.19/7,975.29
  6. Step 6: Final answer
    x = 6,058.36

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Double scale
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Similar ratio
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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.