Home / 2,837.02-4,256.14-862.80

Finding the Fourth Proportional to 2,837.02, 4,256.14 and 862.80

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Solution

The fourth proportional to 2,837.02, 4,256.14 and 862.80 is: 1,294.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,837.02 : 4,256.14 = 862.80 : x
  2. Step 2: Convert to fraction form
    2,837.02/4,256.14 = 862.80/x
  3. Step 3: Cross multiply
    2,837.02x = 4,256.14 × 862.80
  4. Step 4: Simplify right side
    2,837.02x = 3,672,197.59
  5. Step 5: Solve for x
    x = 3,672,197.59/2,837.02
  6. Step 6: Final answer
    x = 1,294.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.