Home / 1,214.10-1,820.94-348.18

Finding the Fourth Proportional to 1,214.10, 1,820.94 and 348.18

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Solution

The fourth proportional to 1,214.10, 1,820.94 and 348.18 is: 522.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214.10 : 1,820.94 = 348.18 : x
  2. Step 2: Convert to fraction form
    1,214.10/1,820.94 = 348.18/x
  3. Step 3: Cross multiply
    1,214.10x = 1,820.94 × 348.18
  4. Step 4: Simplify right side
    1,214.10x = 634,014.89
  5. Step 5: Solve for x
    x = 634,014.89/1,214.10
  6. Step 6: Final answer
    x = 522.21

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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.