Home / 3,157.11-4,356.72-1,830.69

Finding the Fourth Proportional to 3,157.11, 4,356.72 and 1,830.69

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Solution

The fourth proportional to 3,157.11, 4,356.72 and 1,830.69 is: 2,526.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.11 : 4,356.72 = 1,830.69 : x
  2. Step 2: Convert to fraction form
    3,157.11/4,356.72 = 1,830.69/x
  3. Step 3: Cross multiply
    3,157.11x = 4,356.72 × 1,830.69
  4. Step 4: Simplify right side
    3,157.11x = 7,975,803.74
  5. Step 5: Solve for x
    x = 7,975,803.74/3,157.11
  6. Step 6: Final answer
    x = 2,526.30

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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.