Home / 2,930.90-4,407.15-2,455.70

Finding the Fourth Proportional to 2,930.90, 4,407.15 and 2,455.70

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Solution

The fourth proportional to 2,930.90, 4,407.15 and 2,455.70 is: 3,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.90 : 4,407.15 = 2,455.70 : x
  2. Step 2: Convert to fraction form
    2,930.90/4,407.15 = 2,455.70/x
  3. Step 3: Cross multiply
    2,930.90x = 4,407.15 × 2,455.70
  4. Step 4: Simplify right side
    2,930.90x = 10,822,638.26
  5. Step 5: Solve for x
    x = 10,822,638.26/2,930.90
  6. Step 6: Final answer
    x = 3,692.60

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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.