Home / 1,885.87-2,602.37-1,089.23

Finding the Fourth Proportional to 1,885.87, 2,602.37 and 1,089.23

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Solution

The fourth proportional to 1,885.87, 2,602.37 and 1,089.23 is: 1,503.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.87 : 2,602.37 = 1,089.23 : x
  2. Step 2: Convert to fraction form
    1,885.87/2,602.37 = 1,089.23/x
  3. Step 3: Cross multiply
    1,885.87x = 2,602.37 × 1,089.23
  4. Step 4: Simplify right side
    1,885.87x = 2,834,578.95
  5. Step 5: Solve for x
    x = 2,834,578.95/1,885.87
  6. Step 6: Final answer
    x = 1,503.06

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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.