Home / 4,779.17-7,168.76-2,807.81

Finding the Fourth Proportional to 4,779.17, 7,168.76 and 2,807.81

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Solution

The fourth proportional to 4,779.17, 7,168.76 and 2,807.81 is: 4,211.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.17 : 7,168.76 = 2,807.81 : x
  2. Step 2: Convert to fraction form
    4,779.17/7,168.76 = 2,807.81/x
  3. Step 3: Cross multiply
    4,779.17x = 7,168.76 × 2,807.81
  4. Step 4: Simplify right side
    4,779.17x = 20,128,516.02
  5. Step 5: Solve for x
    x = 20,128,516.02/4,779.17
  6. Step 6: Final answer
    x = 4,211.72

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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.