Home / 2,810.42-3,877.76-1,630.81

Finding the Fourth Proportional to 2,810.42, 3,877.76 and 1,630.81

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Solution

The fourth proportional to 2,810.42, 3,877.76 and 1,630.81 is: 2,250.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.42 : 3,877.76 = 1,630.81 : x
  2. Step 2: Convert to fraction form
    2,810.42/3,877.76 = 1,630.81/x
  3. Step 3: Cross multiply
    2,810.42x = 3,877.76 × 1,630.81
  4. Step 4: Simplify right side
    2,810.42x = 6,323,889.79
  5. Step 5: Solve for x
    x = 6,323,889.79/2,810.42
  6. Step 6: Final answer
    x = 2,250.16

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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.