Home / 3,070.84-4,603.70-1,220.80

Finding the Fourth Proportional to 3,070.84, 4,603.70 and 1,220.80

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Solution

The fourth proportional to 3,070.84, 4,603.70 and 1,220.80 is: 1,830.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.84 : 4,603.70 = 1,220.80 : x
  2. Step 2: Convert to fraction form
    3,070.84/4,603.70 = 1,220.80/x
  3. Step 3: Cross multiply
    3,070.84x = 4,603.70 × 1,220.80
  4. Step 4: Simplify right side
    3,070.84x = 5,620,196.96
  5. Step 5: Solve for x
    x = 5,620,196.96/3,070.84
  6. Step 6: Final answer
    x = 1,830.18

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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.