Home / 4,430.10-6,640.23-1,830.78

Finding the Fourth Proportional to 4,430.10, 6,640.23 and 1,830.78

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Solution

The fourth proportional to 4,430.10, 6,640.23 and 1,830.78 is: 2,744.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,430.10 : 6,640.23 = 1,830.78 : x
  2. Step 2: Convert to fraction form
    4,430.10/6,640.23 = 1,830.78/x
  3. Step 3: Cross multiply
    4,430.10x = 6,640.23 × 1,830.78
  4. Step 4: Simplify right side
    4,430.10x = 12,156,800.28
  5. Step 5: Solve for x
    x = 12,156,800.28/4,430.10
  6. Step 6: Final answer
    x = 2,744.14

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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.