Home / 3,534.74-4,877.40-2,118.10

Finding the Fourth Proportional to 3,534.74, 4,877.40 and 2,118.10

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Solution

The fourth proportional to 3,534.74, 4,877.40 and 2,118.10 is: 2,922.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,534.74 : 4,877.40 = 2,118.10 : x
  2. Step 2: Convert to fraction form
    3,534.74/4,877.40 = 2,118.10/x
  3. Step 3: Cross multiply
    3,534.74x = 4,877.40 × 2,118.10
  4. Step 4: Simplify right side
    3,534.74x = 10,330,820.94
  5. Step 5: Solve for x
    x = 10,330,820.94/3,534.74
  6. Step 6: Final answer
    x = 2,922.65

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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.