Home / 2,312.11-3,461.99-1,386.39

Finding the Fourth Proportional to 2,312.11, 3,461.99 and 1,386.39

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Solution

The fourth proportional to 2,312.11, 3,461.99 and 1,386.39 is: 2,075.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.11 : 3,461.99 = 1,386.39 : x
  2. Step 2: Convert to fraction form
    2,312.11/3,461.99 = 1,386.39/x
  3. Step 3: Cross multiply
    2,312.11x = 3,461.99 × 1,386.39
  4. Step 4: Simplify right side
    2,312.11x = 4,799,672.43
  5. Step 5: Solve for x
    x = 4,799,672.43/2,312.11
  6. Step 6: Final answer
    x = 2,075.89

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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.