Home / 3,312.02-4,570.36-1,820

Finding the Fourth Proportional to 3,312.02, 4,570.36 and 1,820

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Solution

The fourth proportional to 3,312.02, 4,570.36 and 1,820 is: 2,511.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.02 : 4,570.36 = 1,820 : x
  2. Step 2: Convert to fraction form
    3,312.02/4,570.36 = 1,820/x
  3. Step 3: Cross multiply
    3,312.02x = 4,570.36 × 1,820
  4. Step 4: Simplify right side
    3,312.02x = 8,318,046.10
  5. Step 5: Solve for x
    x = 8,318,046.10/3,312.02
  6. Step 6: Final answer
    x = 2,511.47

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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.