Home / 3,156.34-4,355.72-1,740.08

Finding the Fourth Proportional to 3,156.34, 4,355.72 and 1,740.08

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Solution

The fourth proportional to 3,156.34, 4,355.72 and 1,740.08 is: 2,401.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.34 : 4,355.72 = 1,740.08 : x
  2. Step 2: Convert to fraction form
    3,156.34/4,355.72 = 1,740.08/x
  3. Step 3: Cross multiply
    3,156.34x = 4,355.72 × 1,740.08
  4. Step 4: Simplify right side
    3,156.34x = 7,579,305.30
  5. Step 5: Solve for x
    x = 7,579,305.30/3,156.34
  6. Step 6: Final answer
    x = 2,401.30

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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.