Home / 2,981.45-4,114.35-1,655.11

Finding the Fourth Proportional to 2,981.45, 4,114.35 and 1,655.11

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Solution

The fourth proportional to 2,981.45, 4,114.35 and 1,655.11 is: 2,284.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.45 : 4,114.35 = 1,655.11 : x
  2. Step 2: Convert to fraction form
    2,981.45/4,114.35 = 1,655.11/x
  3. Step 3: Cross multiply
    2,981.45x = 4,114.35 × 1,655.11
  4. Step 4: Simplify right side
    2,981.45x = 6,809,701.83
  5. Step 5: Solve for x
    x = 6,809,701.83/2,981.45
  6. Step 6: Final answer
    x = 2,284.02

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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.