Home / 4,779.09-7,166.70-1,490.90

Finding the Fourth Proportional to 4,779.09, 7,166.70 and 1,490.90

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Solution

The fourth proportional to 4,779.09, 7,166.70 and 1,490.90 is: 2,235.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.09 : 7,166.70 = 1,490.90 : x
  2. Step 2: Convert to fraction form
    4,779.09/7,166.70 = 1,490.90/x
  3. Step 3: Cross multiply
    4,779.09x = 7,166.70 × 1,490.90
  4. Step 4: Simplify right side
    4,779.09x = 10,684,797.20
  5. Step 5: Solve for x
    x = 10,684,797.20/4,779.09
  6. Step 6: Final answer
    x = 2,235.74

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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.