Home / 3,534.02-4,877.46-2,117.78

Finding the Fourth Proportional to 3,534.02, 4,877.46 and 2,117.78

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Solution

The fourth proportional to 3,534.02, 4,877.46 and 2,117.78 is: 2,922.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,534.02 : 4,877.46 = 2,117.78 : x
  2. Step 2: Convert to fraction form
    3,534.02/4,877.46 = 2,117.78/x
  3. Step 3: Cross multiply
    3,534.02x = 4,877.46 × 2,117.78
  4. Step 4: Simplify right side
    3,534.02x = 10,329,387.24
  5. Step 5: Solve for x
    x = 10,329,387.24/3,534.02
  6. Step 6: Final answer
    x = 2,922.84

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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.