Home / 2,981.54-4,114.56-1,655.34

Finding the Fourth Proportional to 2,981.54, 4,114.56 and 1,655.34

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Solution

The fourth proportional to 2,981.54, 4,114.56 and 1,655.34 is: 2,284.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.54 : 4,114.56 = 1,655.34 : x
  2. Step 2: Convert to fraction form
    2,981.54/4,114.56 = 1,655.34/x
  3. Step 3: Cross multiply
    2,981.54x = 4,114.56 × 1,655.34
  4. Step 4: Simplify right side
    2,981.54x = 6,810,995.75
  5. Step 5: Solve for x
    x = 6,810,995.75/2,981.54
  6. Step 6: Final answer
    x = 2,284.39

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1.5x scale

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.