Home / 1,475.84-2,037.12-1,427.20

Finding the Fourth Proportional to 1,475.84, 2,037.12 and 1,427.20

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Solution

The fourth proportional to 1,475.84, 2,037.12 and 1,427.20 is: 1,969.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.84 : 2,037.12 = 1,427.20 : x
  2. Step 2: Convert to fraction form
    1,475.84/2,037.12 = 1,427.20/x
  3. Step 3: Cross multiply
    1,475.84x = 2,037.12 × 1,427.20
  4. Step 4: Simplify right side
    1,475.84x = 2,907,377.66
  5. Step 5: Solve for x
    x = 2,907,377.66/1,475.84
  6. Step 6: Final answer
    x = 1,969.98

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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.