Home / 7,620.65-11,430.86-2,074.11

Finding the Fourth Proportional to 7,620.65, 11,430.86 and 2,074.11

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Solution

The fourth proportional to 7,620.65, 11,430.86 and 2,074.11 is: 3,111.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.65 : 11,430.86 = 2,074.11 : x
  2. Step 2: Convert to fraction form
    7,620.65/11,430.86 = 2,074.11/x
  3. Step 3: Cross multiply
    7,620.65x = 11,430.86 × 2,074.11
  4. Step 4: Simplify right side
    7,620.65x = 23,708,807.80
  5. Step 5: Solve for x
    x = 23,708,807.80/7,620.65
  6. Step 6: Final answer
    x = 3,111.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.