Home / 1,803.44-2,487.10-1,139.14

Finding the Fourth Proportional to 1,803.44, 2,487.10 and 1,139.14

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Solution

The fourth proportional to 1,803.44, 2,487.10 and 1,139.14 is: 1,570.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803.44 : 2,487.10 = 1,139.14 : x
  2. Step 2: Convert to fraction form
    1,803.44/2,487.10 = 1,139.14/x
  3. Step 3: Cross multiply
    1,803.44x = 2,487.10 × 1,139.14
  4. Step 4: Simplify right side
    1,803.44x = 2,833,155.09
  5. Step 5: Solve for x
    x = 2,833,155.09/1,803.44
  6. Step 6: Final answer
    x = 1,570.97

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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.