Home / 1,868.31-2,803.64-1,047.13

Finding the Fourth Proportional to 1,868.31, 2,803.64 and 1,047.13

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Solution

The fourth proportional to 1,868.31, 2,803.64 and 1,047.13 is: 1,571.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.31 : 2,803.64 = 1,047.13 : x
  2. Step 2: Convert to fraction form
    1,868.31/2,803.64 = 1,047.13/x
  3. Step 3: Cross multiply
    1,868.31x = 2,803.64 × 1,047.13
  4. Step 4: Simplify right side
    1,868.31x = 2,935,775.55
  5. Step 5: Solve for x
    x = 2,935,775.55/1,868.31
  6. Step 6: Final answer
    x = 1,571.35

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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.