Home / 7,040.30-10,555.65-2,879.08

Finding the Fourth Proportional to 7,040.30, 10,555.65 and 2,879.08

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Solution

The fourth proportional to 7,040.30, 10,555.65 and 2,879.08 is: 4,316.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.30 : 10,555.65 = 2,879.08 : x
  2. Step 2: Convert to fraction form
    7,040.30/10,555.65 = 2,879.08/x
  3. Step 3: Cross multiply
    7,040.30x = 10,555.65 × 2,879.08
  4. Step 4: Simplify right side
    7,040.30x = 30,390,534.41
  5. Step 5: Solve for x
    x = 30,390,534.41/7,040.30
  6. Step 6: Final answer
    x = 4,316.66

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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.