Home / 1,436.60-2,151.50-887.13

Finding the Fourth Proportional to 1,436.60, 2,151.50 and 887.13

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Solution

The fourth proportional to 1,436.60, 2,151.50 and 887.13 is: 1,328.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436.60 : 2,151.50 = 887.13 : x
  2. Step 2: Convert to fraction form
    1,436.60/2,151.50 = 887.13/x
  3. Step 3: Cross multiply
    1,436.60x = 2,151.50 × 887.13
  4. Step 4: Simplify right side
    1,436.60x = 1,908,655.76
  5. Step 5: Solve for x
    x = 1,908,655.76/1,436.60
  6. Step 6: Final answer
    x = 1,328.59

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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.