Home / 1,806.47-2,492.01-1,178.05

Finding the Fourth Proportional to 1,806.47, 2,492.01 and 1,178.05

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Solution

The fourth proportional to 1,806.47, 2,492.01 and 1,178.05 is: 1,625.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.47 : 2,492.01 = 1,178.05 : x
  2. Step 2: Convert to fraction form
    1,806.47/2,492.01 = 1,178.05/x
  3. Step 3: Cross multiply
    1,806.47x = 2,492.01 × 1,178.05
  4. Step 4: Simplify right side
    1,806.47x = 2,935,706.49
  5. Step 5: Solve for x
    x = 2,935,706.49/1,806.47
  6. Step 6: Final answer
    x = 1,625.11

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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.