Home / 5,681.09-7,840.28-3,443.18

Finding the Fourth Proportional to 5,681.09, 7,840.28 and 3,443.18

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Solution

The fourth proportional to 5,681.09, 7,840.28 and 3,443.18 is: 4,751.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.09 : 7,840.28 = 3,443.18 : x
  2. Step 2: Convert to fraction form
    5,681.09/7,840.28 = 3,443.18/x
  3. Step 3: Cross multiply
    5,681.09x = 7,840.28 × 3,443.18
  4. Step 4: Simplify right side
    5,681.09x = 26,995,445.33
  5. Step 5: Solve for x
    x = 26,995,445.33/5,681.09
  6. Step 6: Final answer
    x = 4,751.81

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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.