Home / 3,156.90-4,357.08-1,830.94

Finding the Fourth Proportional to 3,156.90, 4,357.08 and 1,830.94

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Solution

The fourth proportional to 3,156.90, 4,357.08 and 1,830.94 is: 2,527.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.90 : 4,357.08 = 1,830.94 : x
  2. Step 2: Convert to fraction form
    3,156.90/4,357.08 = 1,830.94/x
  3. Step 3: Cross multiply
    3,156.90x = 4,357.08 × 1,830.94
  4. Step 4: Simplify right side
    3,156.90x = 7,977,552.06
  5. Step 5: Solve for x
    x = 7,977,552.06/3,156.90
  6. Step 6: Final answer
    x = 2,527.02

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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.