Home / 3,057.84-4,220.17-2,870.18

Finding the Fourth Proportional to 3,057.84, 4,220.17 and 2,870.18

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Solution

The fourth proportional to 3,057.84, 4,220.17 and 2,870.18 is: 3,961.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.84 : 4,220.17 = 2,870.18 : x
  2. Step 2: Convert to fraction form
    3,057.84/4,220.17 = 2,870.18/x
  3. Step 3: Cross multiply
    3,057.84x = 4,220.17 × 2,870.18
  4. Step 4: Simplify right side
    3,057.84x = 12,112,647.53
  5. Step 5: Solve for x
    x = 12,112,647.53/3,057.84
  6. Step 6: Final answer
    x = 3,961.18

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.