Home / 3,156.57-4,355.87-1,740.19

Finding the Fourth Proportional to 3,156.57, 4,355.87 and 1,740.19

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Solution

The fourth proportional to 3,156.57, 4,355.87 and 1,740.19 is: 2,401.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.57 : 4,355.87 = 1,740.19 : x
  2. Step 2: Convert to fraction form
    3,156.57/4,355.87 = 1,740.19/x
  3. Step 3: Cross multiply
    3,156.57x = 4,355.87 × 1,740.19
  4. Step 4: Simplify right side
    3,156.57x = 7,580,023.99
  5. Step 5: Solve for x
    x = 7,580,023.99/3,156.57
  6. Step 6: Final answer
    x = 2,401.35

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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.