Home / 3,154.50-4,353.21-1,810.35

Finding the Fourth Proportional to 3,154.50, 4,353.21 and 1,810.35

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Solution

The fourth proportional to 3,154.50, 4,353.21 and 1,810.35 is: 2,498.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.50 : 4,353.21 = 1,810.35 : x
  2. Step 2: Convert to fraction form
    3,154.50/4,353.21 = 1,810.35/x
  3. Step 3: Cross multiply
    3,154.50x = 4,353.21 × 1,810.35
  4. Step 4: Simplify right side
    3,154.50x = 7,880,833.72
  5. Step 5: Solve for x
    x = 7,880,833.72/3,154.50
  6. Step 6: Final answer
    x = 2,498.28

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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.