Home / 2,689.37-4,034.02-1,047.07

Finding the Fourth Proportional to 2,689.37, 4,034.02 and 1,047.07

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Solution

The fourth proportional to 2,689.37, 4,034.02 and 1,047.07 is: 1,570.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.37 : 4,034.02 = 1,047.07 : x
  2. Step 2: Convert to fraction form
    2,689.37/4,034.02 = 1,047.07/x
  3. Step 3: Cross multiply
    2,689.37x = 4,034.02 × 1,047.07
  4. Step 4: Simplify right side
    2,689.37x = 4,223,901.32
  5. Step 5: Solve for x
    x = 4,223,901.32/2,689.37
  6. Step 6: Final answer
    x = 1,570.59

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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.