Home / 2,428.02-3,638.57-1,877.63

Finding the Fourth Proportional to 2,428.02, 3,638.57 and 1,877.63

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Solution

The fourth proportional to 2,428.02, 3,638.57 and 1,877.63 is: 2,813.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.02 : 3,638.57 = 1,877.63 : x
  2. Step 2: Convert to fraction form
    2,428.02/3,638.57 = 1,877.63/x
  3. Step 3: Cross multiply
    2,428.02x = 3,638.57 × 1,877.63
  4. Step 4: Simplify right side
    2,428.02x = 6,831,860.61
  5. Step 5: Solve for x
    x = 6,831,860.61/2,428.02
  6. Step 6: Final answer
    x = 2,813.76

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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.