Home / 1,487.30-2,050.80-1,266.98

Finding the Fourth Proportional to 1,487.30, 2,050.80 and 1,266.98

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Solution

The fourth proportional to 1,487.30, 2,050.80 and 1,266.98 is: 1,747.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.30 : 2,050.80 = 1,266.98 : x
  2. Step 2: Convert to fraction form
    1,487.30/2,050.80 = 1,266.98/x
  3. Step 3: Cross multiply
    1,487.30x = 2,050.80 × 1,266.98
  4. Step 4: Simplify right side
    1,487.30x = 2,598,322.58
  5. Step 5: Solve for x
    x = 2,598,322.58/1,487.30
  6. Step 6: Final answer
    x = 1,747.01

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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.