Home / 1,851.15-2,777.07-710.03

Finding the Fourth Proportional to 1,851.15, 2,777.07 and 710.03

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Solution

The fourth proportional to 1,851.15, 2,777.07 and 710.03 is: 1,065.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.15 : 2,777.07 = 710.03 : x
  2. Step 2: Convert to fraction form
    1,851.15/2,777.07 = 710.03/x
  3. Step 3: Cross multiply
    1,851.15x = 2,777.07 × 710.03
  4. Step 4: Simplify right side
    1,851.15x = 1,971,808.62
  5. Step 5: Solve for x
    x = 1,971,808.62/1,851.15
  6. Step 6: Final answer
    x = 1,065.18

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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.