Home / 7,062.81-9,746.19-3,918.75

Finding the Fourth Proportional to 7,062.81, 9,746.19 and 3,918.75

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Solution

The fourth proportional to 7,062.81, 9,746.19 and 3,918.75 is: 5,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,062.81 : 9,746.19 = 3,918.75 : x
  2. Step 2: Convert to fraction form
    7,062.81/9,746.19 = 3,918.75/x
  3. Step 3: Cross multiply
    7,062.81x = 9,746.19 × 3,918.75
  4. Step 4: Simplify right side
    7,062.81x = 38,192,882.06
  5. Step 5: Solve for x
    x = 38,192,882.06/7,062.81
  6. Step 6: Final answer
    x = 5,407.60

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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.