Home / 7,062.80-9,746.68-3,918.99

Finding the Fourth Proportional to 7,062.80, 9,746.68 and 3,918.99

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Solution

The fourth proportional to 7,062.80, 9,746.68 and 3,918.99 is: 5,408.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,062.80 : 9,746.68 = 3,918.99 : x
  2. Step 2: Convert to fraction form
    7,062.80/9,746.68 = 3,918.99/x
  3. Step 3: Cross multiply
    7,062.80x = 9,746.68 × 3,918.99
  4. Step 4: Simplify right side
    7,062.80x = 38,197,141.45
  5. Step 5: Solve for x
    x = 38,197,141.45/7,062.80
  6. Step 6: Final answer
    x = 5,408.22

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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.