Home / 7,109.04-9,810.51-3,922.28

Finding the Fourth Proportional to 7,109.04, 9,810.51 and 3,922.28

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Solution

The fourth proportional to 7,109.04, 9,810.51 and 3,922.28 is: 5,412.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.04 : 9,810.51 = 3,922.28 : x
  2. Step 2: Convert to fraction form
    7,109.04/9,810.51 = 3,922.28/x
  3. Step 3: Cross multiply
    7,109.04x = 9,810.51 × 3,922.28
  4. Step 4: Simplify right side
    7,109.04x = 38,479,567.16
  5. Step 5: Solve for x
    x = 38,479,567.16/7,109.04
  6. Step 6: Final answer
    x = 5,412.77

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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.