Home / 3,417.75-4,715.15-2,158.34

Finding the Fourth Proportional to 3,417.75, 4,715.15 and 2,158.34

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Solution

The fourth proportional to 3,417.75, 4,715.15 and 2,158.34 is: 2,977.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.75 : 4,715.15 = 2,158.34 : x
  2. Step 2: Convert to fraction form
    3,417.75/4,715.15 = 2,158.34/x
  3. Step 3: Cross multiply
    3,417.75x = 4,715.15 × 2,158.34
  4. Step 4: Simplify right side
    3,417.75x = 10,176,862.48
  5. Step 5: Solve for x
    x = 10,176,862.48/3,417.75
  6. Step 6: Final answer
    x = 2,977.65

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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.