Home / 2,487.36-3,431.40-1,602.84

Finding the Fourth Proportional to 2,487.36, 3,431.40 and 1,602.84

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Solution

The fourth proportional to 2,487.36, 3,431.40 and 1,602.84 is: 2,211.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.36 : 3,431.40 = 1,602.84 : x
  2. Step 2: Convert to fraction form
    2,487.36/3,431.40 = 1,602.84/x
  3. Step 3: Cross multiply
    2,487.36x = 3,431.40 × 1,602.84
  4. Step 4: Simplify right side
    2,487.36x = 5,499,985.18
  5. Step 5: Solve for x
    x = 5,499,985.18/2,487.36
  6. Step 6: Final answer
    x = 2,211.17

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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.