Home / 7,180.23-9,909.61-4,036.42

Finding the Fourth Proportional to 7,180.23, 9,909.61 and 4,036.42

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Solution

The fourth proportional to 7,180.23, 9,909.61 and 4,036.42 is: 5,570.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.23 : 9,909.61 = 4,036.42 : x
  2. Step 2: Convert to fraction form
    7,180.23/9,909.61 = 4,036.42/x
  3. Step 3: Cross multiply
    7,180.23x = 9,909.61 × 4,036.42
  4. Step 4: Simplify right side
    7,180.23x = 39,999,313.13
  5. Step 5: Solve for x
    x = 39,999,313.13/7,180.23
  6. Step 6: Final answer
    x = 5,570.76

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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.