Home / 3,312.21-4,570.62-1,820.19

Finding the Fourth Proportional to 3,312.21, 4,570.62 and 1,820.19

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Solution

The fourth proportional to 3,312.21, 4,570.62 and 1,820.19 is: 2,511.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.21 : 4,570.62 = 1,820.19 : x
  2. Step 2: Convert to fraction form
    3,312.21/4,570.62 = 1,820.19/x
  3. Step 3: Cross multiply
    3,312.21x = 4,570.62 × 1,820.19
  4. Step 4: Simplify right side
    3,312.21x = 8,319,396.82
  5. Step 5: Solve for x
    x = 8,319,396.82/3,312.21
  6. Step 6: Final answer
    x = 2,511.74

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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.