Home / 2,981.27-4,114.16-1,655.00

Finding the Fourth Proportional to 2,981.27, 4,114.16 and 1,655.00

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Solution

The fourth proportional to 2,981.27, 4,114.16 and 1,655.00 is: 2,283.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.27 : 4,114.16 = 1,655.00 : x
  2. Step 2: Convert to fraction form
    2,981.27/4,114.16 = 1,655.00/x
  3. Step 3: Cross multiply
    2,981.27x = 4,114.16 × 1,655.00
  4. Step 4: Simplify right side
    2,981.27x = 6,808,905.95
  5. Step 5: Solve for x
    x = 6,808,905.95/2,981.27
  6. Step 6: Final answer
    x = 2,283.90

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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.