Home / 1,790.48-2,681.40-1,018.64

Finding the Fourth Proportional to 1,790.48, 2,681.40 and 1,018.64

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Solution

The fourth proportional to 1,790.48, 2,681.40 and 1,018.64 is: 1,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.48 : 2,681.40 = 1,018.64 : x
  2. Step 2: Convert to fraction form
    1,790.48/2,681.40 = 1,018.64/x
  3. Step 3: Cross multiply
    1,790.48x = 2,681.40 × 1,018.64
  4. Step 4: Simplify right side
    1,790.48x = 2,731,381.30
  5. Step 5: Solve for x
    x = 2,731,381.30/1,790.48
  6. Step 6: Final answer
    x = 1,525.50

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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.